- Size: Male around 2.5" (6 cm), female slightly smaller
- Tank: 20 gallons minimum
- pH: 5–7 (tolerates neutral better than most true blackwater apistos)
- Temperature: 75–82°F (24–28°C)
- Hardness: Soft, 2–10 dGH
- Temperament: Peaceful, easygoing for the genus
- Difficulty: Beginner-friendly for a genus that mostly isn't
Overview
Apistogramma hongsloi, the red-lined dwarf cichlid, is one of the most genuinely beginner-friendly apistos available — tolerant of neutral water, easygoing in temperament, and considered straightforward even for advanced beginners to breed. It comes from the Orinoco Delta region, inhabiting clear, clean, oxygen-rich savannah streams and tributaries feeding into the Rio Meta. That habitat is a step away from the classic tannin-stained blackwater picture, and it shows in the fish: hongsloi is noticeably more forgiving of real-world water conditions than nijsseni or steindachneri, while still coloring up best in a proper blackwater setup.
The body is grey at base, without the pronounced high back some apistos show, with a bright yellow spot over the gill cover and a fine, bordered net pattern across the scales. Scattered red-edged scales — concentrated toward the belly — give the species its common name.
Tank Setup
- Substrate: Sand or fine gravel.
- Hardscape: Driftwood, rockwork, and dense planting for territory. A blackwater setup rich in humic substances — leaf litter, driftwood tannins — is ideal, though this species tolerates a plainer setup better than most.
- Filtration: Gentle flow, good oxygenation — this species comes from well-oxygenated streams, so don't let the tank go stagnant.
- Lighting: Moderate, with floating plants for cover if the tank runs bright.
Feeding
A straightforward omnivore. Quality flake and pellet as a staple, with live or frozen bloodworms, brine shrimp, and small insects for color and conditioning. Nothing unusual here compared to the rest of the genus.
Temperament & Compatibility
One of the more genuinely easygoing apistos — described by longtime keepers as manageable even for advanced beginners, which is unusual praise in this genus. Still territorial when breeding, but generally less confrontational day-to-day than macmasteri or steindachneri. Works well with peaceful community fish and other calm bottom- and mid-water species.
Breeding
Breeding is considered straightforward by apisto standards — hongsloi is regularly cited as a species even beginners can breed successfully in a home aquarium. Water parameters echo the rest of the genus: soft and acidic (roughly pH 5–6) for the most reliable results, though a pH closer to neutral is workable too. Expect the standard cave-spawning pattern: female guards eggs and fry closely, male holds the surrounding territory, and growth simply takes a bit longer than some other species before fish reach full maturity and coloration.
Fry care follows the usual sequence — infusoria or fine food at first, newly hatched brine shrimp as they grow — with the same non-negotiable need for clean, low-nitrate water throughout.
Where to Get Quality Fish
Less common in general pet stores than cacatuoides but reasonably available through specialists, often as German or domestic tank-bred stock. Look for even coloration and the characteristic yellow gill spot as a basic health and ID check. See our sourcing guide for more.
Final Thoughts
If you've got the cacatuoides basics down and want a second species that won't punish a small mistake in water chemistry, hongsloi is one of the more genuinely forgiving choices in this genus — attractive, easy to breed, and a good bridge toward the more demanding blackwater specialists later on.
Frequently Asked Questions
Is Apistogramma hongsloi good for beginners?
Yes, unusually so for this genus. Hongsloi is regularly cited as a species even advanced beginners can keep and breed successfully, more forgiving of real-world water than most apistos.
What tank size does hongsloi need?
20 gallons minimum, with the usual apisto setup of sand substrate, driftwood, and dense planting for territory.
What pH does hongsloi tolerate?
A range of pH 5 to 7. It tolerates neutral water better than true blackwater specialists like nijsseni or steindachneri, though it still colors up best in a proper blackwater setup.
How hard is it to breed hongsloi?
Considered straightforward by apisto standards — hongsloi is one of the more genuinely beginner-friendly species to spawn in this genus.
Where does Apistogramma hongsloi come from?
The Orinoco Delta region, inhabiting clear, clean, oxygen-rich savannah streams feeding into the Rio Meta — a step away from the classic tannin-stained blackwater picture.
What does Apistogramma hongsloi look like?
A grey body without a pronounced high back, a bright yellow spot over the gill cover, a fine bordered net pattern across the scales, and scattered red-edged scales concentrated toward the belly.
Apistogrammarama is written and maintained by the aquarium staff at Pet Zone Tropical Fish in San Diego, who have imported and kept South American dwarf cichlids since the store's founding in 2007.