Hongsloi Apisto Care Guide: One of the Most Colorful Dwarf Cichlids

Table of Contents

• Key Takeaways
• Species Overview
• Classification
• Origin & Natural Habitat
• Appearance & Identification
• Average Size & Lifespan
• Care Guide
• Tank Mates
• Food & Diet
• Breeding & Reproduction
• Common Health Issues
• Common Mistakes to Avoid
• Where to Buy
• FAQ
• Closing Thoughts
• References

Some fish earn their reputation through subtlety and elegance. The Hongsloi Apisto earns its reputation by being one of the most brilliantly colored dwarf cichlids on the planet. A dominant male Apistogramma hongsloi in full breeding dress is a riot of color: fiery reds and oranges blazing across the belly and lower body, offset by a golden-olive dorsal region and flashes of iridescent blue. It’s the kind of fish that makes visitors lean in and ask, “What is THAT?” And the answer is always satisfying, because this is a fish that’s as fascinating to keep as it is beautiful to look at.

Native to the Orinoco River basin in Colombia and Venezuela, the Hongsloi Apisto has been captivating dwarf cichlid enthusiasts for decades. It’s widely regarded as one of the most colorful Apistogramma species, and that assessment is well-deserved. In my 25+ years in the hobby, few species have offered me the combination of visual impact, interesting behavior, and breeding potential that this one delivers. It’s not the most demanding Apisto to keep, either, making it accessible to intermediate hobbyists who are ready to step beyond the most beginner-friendly species. Here’s your complete guide to keeping Hongsloi Apistos successfully.

Key Takeaways

• One of the most colorful Apistos available: Males display intense red-orange ventral coloration combined with golden body tones and blue-green iridescence that few dwarf cichlids can match.
• Harem structure works best: One male with two to three females is the ideal social arrangement. Males are territorial and polygynous, so multiple females distribute aggression.
• Warm-water species: Unlike some Apistos that prefer cooler conditions, A. hongsloi thrives at temperatures in the upper 70s to low 80s°F.
• Cave spawners with dedicated maternal care: Females guard eggs and fry with intense devotion, sometimes becoming dangerously aggressive toward tank mates during this period.
• Manageable for intermediate keepers: Captive-bred specimens are reasonably adaptable, though soft, slightly acidic water still produces the best results.

Species Overview

Property	Details
Scientific Name	Apistogramma hongsloi
Common Names	Hongsloi Apisto, Hongsloi Dwarf Cichlid, Red-Bellied Apisto
Family	Cichlidae
Origin	Colombia, Venezuela (Orinoco River basin)
Care Level	Intermediate
Temperament	Semi-aggressive
Diet	Carnivore (primarily)
Tank Level	Bottom to middle
Maximum Size	3 inches (7.5 cm)
Minimum Tank Size	20 gallons (75 liters)
Temperature	75 – 82°F (24 – 28°C)
pH	5.0 – 7.0
Hardness	1 – 8 dGH
Lifespan	3 – 5 years
Breeding	Cave spawner
Breeding Difficulty	Moderate
Compatibility	Peaceful community with caution during breeding
OK for Planted Tanks?	Yes (highly recommended)

Classification

Taxonomic Rank	Classification
Order	Cichliformes
Family	Cichlidae
Subfamily	Geophaginae
Genus	Apistogramma
Species	A. hongsloi (Kullander, 1979)

Apistogramma hongsloi was described by Sven Kullander in 1979. The species was named in honor of Norwegian aquarist and collector Alf Hongslo, who contributed significantly to the early study of Apistogramma species from the Orinoco basin. There are several recognized color forms in the hobby, most notably “Hongsloi II” or “Super Red,” which features even more intense red ventral coloration than the standard form. These variants represent geographic populations rather than separate species, and all fall under the same scientific name.

Origin & Natural Habitat

The Hongsloi Apisto is native to the Orinoco River basin, with populations documented in the Río Vichada and Río Meta drainages of Colombia, as well as sections of the middle Orinoco in Venezuela. This is a vast, seasonally flooded landscape of open grasslands (llanos) and forested riverbanks, with dramatically different wet and dry season conditions that shape the habitats these fish occupy.

In the wild, A. hongsloi inhabits small tributaries, backwater pools, and flooded areas with slow-moving or still water. The substrate is typically fine sand or mud covered in organic debris, and the water ranges from clear to moderately tannin-stained depending on the specific location and season. Submerged vegetation, fallen branches, and leaf litter provide shelter and foraging grounds. Water conditions tend to be soft and slightly acidic, though this species encounters a wider range of hardness in nature than some of its more specialized congeners, which partly explains its relative adaptability in captivity.

Appearance & Identification

Male Hongsloi Apistos are among the most visually striking dwarf cichlids available in the hobby. The upper body displays a warm golden-olive to amber base color, while the lower body erupts in vivid reds and oranges that can extend from the chin all the way to the anal fin. Depending on the color form, the red intensity ranges from moderate to absolutely blazing. Iridescent blue-green scales scatter across the flanks, and the dorsal fin is tall with extended rays. The caudal fin is rounded to slightly lyrate, often with red-orange markings. When a male is displaying or defending territory, these colors intensify to an almost unbelievable degree.

Females are significantly smaller and display the typical Apistogramma sexual dimorphism. Their base color is yellowish-olive, becoming a more vivid yellow during breeding condition. A dark lateral band is usually visible, and breeding females develop bold vertical bars across the body. Their fins are shorter and more rounded than the males’, without the dramatic extensions or intense coloration.

Male vs. Female

Feature	Male	Female
Size	Up to 3 inches (7.5 cm)	Up to 1.8 inches (4.5 cm)
Coloration	Golden-olive upper body, vivid red-orange belly	Yellowish-olive, yellow when breeding
Dorsal Fin	Tall, pointed, with extended rays	Shorter, rounded
Ventral Color	Intense red-orange	Pale to yellowish
Body Shape	Elongated, laterally compressed	Compact, rounder when gravid

Sexing Hongsloi Apistos becomes quite easy once the fish reach about 1.5 inches (4 cm). The red ventral coloration in males begins developing early and is unmistakable. By the time males approach full maturity, there’s simply no confusing them with the smaller, more subdued females.

Average Size & Lifespan

Males typically reach 2.5 to 3 inches (6 to 7.5 cm) in the aquarium, while females stay considerably smaller at about 1.5 to 1.8 inches (4 to 4.5 cm). Like all Apistogramma, these are true dwarf cichlids, but the males’ elaborate finnage and vivid coloring give them a visual presence that belies their modest dimensions.

With proper care, Hongsloi Apistos typically live 3 to 5 years in captivity. Maintaining stable water conditions, offering a varied diet rich in protein, and providing appropriate social structures all contribute to reaching the upper end of that range. Fish kept in stressful conditions with poor water quality will have significantly shortened lifespans.

Care Guide

Tank Size

A 20-gallon (75-liter) tank works for a single pair, but if you want to keep a harem of one male with two or three females, step up to at least 30 gallons (115 liters). Each female establishes her own territory around a cave site, and these territories need to be far enough apart to minimize conflict. A longer tank footprint is always better than a taller one for these bottom-dwelling fish. A 20-gallon long offers noticeably more usable territory than a standard 20-gallon.

Water Parameters

Parameter	Recommended Range
Temperature	75 – 82°F (24 – 28°C)
pH	5.0 – 7.0
General Hardness (GH)	1 – 8 dGH
KH	1 – 5 dKH
Ammonia	0 ppm
Nitrite	0 ppm
Nitrate	< 20 ppm

The Hongsloi Apisto is one of the more adaptable Apistogramma species when it comes to water chemistry, particularly captive-bred specimens. While they still prefer soft, slightly acidic water, they tolerate a wider range of hardness than many of their congeners. That said, the most vibrant coloration and best breeding results come in soft water with a pH below 7.0. If your tap water is moderately hard, these fish will likely still do fine, but blending with RO water can elevate your results. Perform weekly water changes of 10 to 15 percent to maintain stability.

Filtration & Water Flow

These fish come from slow-moving to still water, so keep filtration gentle. A sponge filter is ideal for breeding tanks, while a hang-on-back filter or small canister filter works well for community setups. If using a power filter, baffle the output to reduce current. Aim for roughly 4 times tank volume turnover per hour, with the emphasis on biological filtration rather than raw flow rate.

Lighting

Moderate to subdued lighting is preferred. Bright, direct lighting tends to make these fish feel exposed and can wash out their stunning coloration. Use floating plants to create areas of shade, and consider adding Indian almond leaves to tint the water with tannins. The warm amber light filtering through tannin-stained water makes the red-orange belly coloration of the males absolutely glow. It’s one of the most beautiful effects you can create in a freshwater aquarium.

Plants & Decorations

A well-decorated tank with plenty of visual barriers and caves is essential. Use driftwood and roots to create a network of sheltered areas, and provide dedicated spawning caves using coconut shells, clay pots, or commercial cichlid caves. Each female needs at least one cave within her territory. Live plants add both beauty and function. Java Fern, Anubias, Cryptocoryne, Vallisneria, and floating plants like Amazon Frogbit are all excellent choices.

Leaf litter is a natural complement to this setup. Scattered Indian almond leaves or dried oak leaves break down slowly, releasing tannins and supporting microfauna growth while mimicking the natural habitat floor. They also provide additional cover for fry during breeding.

Substrate

Fine sand is the appropriate substrate for Hongsloi Apistos. They sift through the substrate while foraging, and coarse gravel can damage their mouths and gills. Choose a soft, smooth sand in a natural color that complements the warm tones of the fish and the overall aesthetic of your setup.

Tank Mates

Best Tank Mates

Choose peaceful species that occupy the middle and upper water levels and appreciate similar water conditions. The best tank mates provide a sense of security as dither fish without competing for bottom territory. Top picks include:

• Pencilfish (Nannostomus species) — Classic Apistogramma dither fish
• Cardinal Tetras — Peaceful and perfectly suited to soft, acidic water
• Rummy-Nose Tetras — Active mid-water schoolers that stay out of the way
• Ember Tetras — Tiny, gentle, and visually complementary
• Hatchetfish — Strict surface dwellers with zero impact on bottom territories
• Small Corydoras (like C. pygmaeus or C. habrosus) — Peaceful bottom companions, though watch during breeding
• Otocinclus — Unobtrusive algae grazers

Tank Mates to Avoid

• Other Apistogramma species — Territory disputes are almost guaranteed in standard tank sizes
• Larger or aggressive cichlids — They will dominate and stress the Hongsloi
• Fin nippers — Tiger Barbs, Serpae Tetras, and similar species will target the males’ fins
• Fast, boisterous species — Buenos Aires Tetras, Giant Danios, and similar hyperactive fish create chronic stress
• Large Plecos — Can damage eggs and compete for cave space

Food & Diet

Hongsloi Apistos are carnivores that feed on small benthic invertebrates in nature. In the aquarium, provide a protein-rich diet centered on frozen and live foods. Frozen bloodworms, brine shrimp, daphnia, cyclops, and mysis shrimp should all be regular offerings. Live foods like baby brine shrimp, grindal worms, and microworms are particularly valuable for conditioning breeding pairs and intensifying the males’ spectacular red coloration.

High-quality sinking pellets and granules can supplement the diet, and most captive-bred specimens accept them readily. However, dry foods alone won’t produce the vibrant coloration or breeding condition this species is capable of. Aim for a diet that’s at least 60 percent frozen and live foods. Feed small amounts two to three times daily, and remove any uneaten food promptly to maintain water quality.

Breeding & Reproduction

Breeding Difficulty

Moderate. Hongsloi Apistos are among the more readily bred Apistogramma species, especially captive-bred strains. They tend to breed reliably once conditions are appropriate, and both the spawning and fry-raising processes are manageable for hobbyists with some experience. The main challenge is managing the female’s aggressive brood defense in smaller setups.

Spawning Tank Setup

A 10 to 20-gallon (40 to 75-liter) breeding tank is sufficient for a pair. Provide multiple cave options, as the female will inspect several before choosing. Coconut shell halves, overturned clay pots with an entry hole, and purpose-built Apistogramma caves all work well. Include driftwood and plants to create visual barriers so the male has hiding spots if the female becomes aggressive post-spawning. A sponge filter provides fry-safe filtration.

Water Conditions for Breeding

Soft, slightly acidic water gives the best results. Target a pH of 5.5 to 6.5, temperature around 78 to 80°F (26 to 27°C), and general hardness below 5 dGH. While this species is more tolerant of moderate hardness than some Apistos, egg viability and hatch rates improve noticeably in softer water. Indian almond leaves and alder cones help maintain appropriate conditions naturally.

Conditioning & Spawning

Condition the pair with generous feedings of live and frozen foods for two to three weeks. The female signals readiness by turning a vivid yellow and spending increasing time near her chosen cave. Spawning takes place inside the cave, with the female depositing 60 to 90 eggs on the ceiling. The eggs are small, adhesive, and reddish-brown in color.

Both parents may participate in early brood care, which is somewhat unusual among Apistogramma species. However, the female typically takes primary responsibility for egg guarding and fanning. She can become very aggressive toward the male during this period, so monitor the pair closely and be prepared to remove the male if necessary, especially in tanks under 20 gallons.

Egg & Fry Care

Eggs hatch in 2 to 3 days at breeding temperatures. The wrigglers remain in the cave for approximately 5 days while they absorb their yolk sacs. Once free-swimming, the female (and sometimes the male) leads the fry school around the tank. Initial foods should include freshly hatched baby brine shrimp (Artemia nauplii), which the fry can usually accept from the start. Supplement with infusoria or commercial liquid fry food for the first few days. Growth is steady, and fry begin showing color at around 6 to 8 weeks with consistent feeding.

Common Health Issues

Ich (White Spot Disease)

Ich is a ubiquitous parasite that can affect any freshwater fish, and dwarf cichlids are no exception. It typically appears after temperature fluctuations or the stress of a new introduction. The characteristic white spots, flashing, and clamped fins are easy to recognize. Gradually raising the temperature to 86°F (30°C) for 10 to 14 days is an effective treatment. Hongsloi Apistos tolerate the higher temperatures needed for heat treatment better than cooler-water species, making this approach particularly viable.

Hole-in-the-Head Disease

HITH is a concern with all dwarf cichlids. Small pits or erosions on the head and lateral line are the hallmark symptoms. It’s strongly associated with poor water quality, high nitrates, and nutritional deficiencies. Prevention involves consistent water changes, a varied protein-rich diet, and keeping nitrates below 20 ppm. Early-stage cases respond to metronidazole treatment combined with improved water quality and diet diversification.

Bacterial Infections

Stress from aggression, sudden parameter changes, or poor water quality can compromise the immune system and lead to secondary bacterial infections. These may present as fin rot, reddened areas on the body, or cotton-like growths. Addressing the underlying stressor and treating with broad-spectrum antibacterial medications is the standard approach. Prevention through consistent tank maintenance is always better than treatment.

Fungal Infections

Fungal infections often follow wounds from territorial disputes, appearing as fuzzy white or gray patches on the body or fins. They’re secondary infections that take hold when the skin barrier is compromised. Treating the wound with an antifungal medication and addressing the cause of the injury (often aggression) are both necessary. Maintaining clean water helps prevent fungal colonization of minor wounds.

Common Mistakes to Avoid

• Not enough caves for females: In a harem setup, each female needs her own cave or spawning site within a defined territory. Without enough caves, females fight viciously for the limited resources.
• Keeping multiple males in a small tank: Two males in a 20-gallon tank is a guaranteed conflict. The subordinate male will be relentlessly harassed and may suffer serious injury. One male per tank is the rule unless you have 55+ gallons with well-defined territories.
• Ignoring the diet: A pellet-only diet won’t bring out the famous red coloration this species is known for. Without regular access to frozen and live foods, you’ll have dull, washed-out fish that never reach their potential.
• Using gravel substrate: These substrate sifters need fine sand. Gravel can cause damage to their mouths and gill filaments and should be avoided entirely.
• Skipping water changes: Consistency matters with all dwarf cichlids. Weekly small water changes prevent waste buildup and keep parameters stable.
• Not planning for breeding aggression: When the female starts guarding eggs, she can turn into a tiny terror. Have a plan to remove the male or provide sufficient hiding spots before you end up with an injured fish.

Where to Buy

Hongsloi Apistos are moderately available through specialty fish retailers. The standard form and the popular “Super Red” variant can sometimes be found at well-stocked local fish stores, but online specialty retailers are your best bet for consistent availability. Check these trusted sources:

• Flip Aquatics — A reliable source for dwarf cichlids with careful shipping and healthy stock. They frequently carry Apistogramma species including Hongsloi variants.
• Dan’s Fish — Another excellent retailer with a solid reputation for quality livestock and competitive pricing on dwarf cichlids.

When purchasing, ask whether the fish are captive-bred or wild-caught and inquire about the specific color form if that matters to you. Captive-bred specimens, particularly the “Super Red” line, have been selectively bred for intensified red coloration and are generally hardier than wild-caught fish.

FAQ

What is the difference between Hongsloi and Hongsloi II (Super Red)?

Hongsloi II, commonly marketed as “Super Red,” refers to a selectively bred line that exhibits even more intense red-orange ventral coloration than the wild-type form. Both are the same species (A. hongsloi), but the Super Red variant has been line-bred by hobbyists and commercial breeders to enhance the red pigmentation. The care requirements are identical for both forms.

How do I make my Hongsloi Apisto more colorful?

Three factors drive coloration in this species. First, diet. Regular feedings of color-enhancing live and frozen foods like bloodworms, brine shrimp enriched with astaxanthin, and daphnia make a significant difference. Second, water conditions. Soft, slightly acidic water with tannins brings out the deepest colors. Third, social context. A healthy male with females to display for will show much more intense coloration than one kept alone.

Can Hongsloi Apistos live in a community tank?

Yes, they work well in community tanks with small, peaceful species. The key is choosing tank mates that occupy different water levels and won’t compete for bottom territory. Avoid boisterous or aggressive fish, and be prepared for increased territorial behavior during breeding periods.

How many Hongsloi Apistos can I keep together?

In a 20-gallon tank, keep one male with one or two females. In a 30-gallon or larger, you can keep one male with two to three females. Never house multiple males in tanks under 55 gallons. Each female needs her own territory with at least one cave site, so scale your tank size according to the number of females.

Are Hongsloi Apistos good for beginners?

They’re best suited for intermediate hobbyists. While captive-bred Hongsloi are reasonably adaptable, they still require attention to water quality, proper diet, and understanding of territorial behavior. If you’ve successfully maintained other community fish and want to try your first Apistogramma, slightly hardier species like A. cacatuoides or A. borellii are often recommended as starting points, with Hongsloi being an excellent second or third species.

Closing Thoughts

The Hongsloi Apisto is a fish that delivers on every level. The coloration is genuinely spectacular, the behavior is endlessly fascinating, and the breeding experience is rewarding for anyone willing to put in the work. A male in full display, with his red-orange belly blazing and his fins flared wide, is one of the most impressive sights in the dwarf cichlid world. There’s a reason this species consistently ranks among the favorites of Apistogramma enthusiasts worldwide.

Give this fish soft water, a well-decorated tank with plenty of caves, and a steady supply of protein-rich foods, and it will repay you with some of the most vivid coloration and captivating behavior you’ll ever experience in a 20-gallon aquarium. If you’ve been thinking about stepping into the world of Apistogramma, or adding another species to your collection, the Hongsloi deserves a prominent spot on your short list.

References

• Seriously Fish. (n.d.). Apistogramma hongsloi. Retrieved from https://www.seriouslyfish.com/species/apistogramma-hongsloi/
• Froese, R. & Pauly, D. (Eds.). (2024). Apistogramma hongsloi in FishBase. Retrieved from https://www.fishbase.se/summary/Apistogramma-hongsloi.html
• Kullander, S.O. (1979). Species of Apistogramma (Teleostei, Cichlidae) from the Orinoco drainage basin, South America. Zoologica Scripta, 8(1-4), 69-79.
• Römer, U. (2006). Cichlid Atlas Volume 2: Natural History of South American Dwarf Cichlids. Mergus Publishers.