Can Apistogramma Live With Keyhole Cichlid?
Yes, apistogrammas and keyhole cichlids coexist well in 20 gallons or larger with compatible water parameters and peaceful dispositions.
Why
- Keyhole cichlids grow to about 4 inches while apistogrammas stay at 2-3 inches, so the size difference is manageable and non-threatening.
- Both species are dwarf cichlids with similar temperaments, preferring calm tanks over boisterous tankmates.
- Temperature overlap of 72-78F and pH overlap of 6-7 suit both species without compromise.
- Keyhole cichlids are known for their exceptionally peaceful nature and rarely bother other fish, including smaller cichlids.
- Both species appreciate planted tanks with hiding spots, making the same setup ideal for each.
What could go wrong
During breeding, either species may become territorial and display aggression; ensure the tank has enough line-of-sight breaks to reduce confrontations.
Gear for a shared tank
Sized for the 20 gallon minimum this pairing needs. Affiliate links — we earn a small commission if you buy through them.
AquaClear 30 Power Filter
Oversized filtration is what lets you stock two species together without water quality crashing. Rated for a tank slightly larger than the 20 gallon minimum.
Eheim Jager 150W Thermostat Heater
Holds a steady temperature inside the 72-78°F window both species need.
API Freshwater Master Test Kit
Keep ammonia, nitrite, and nitrate in check. Two-species tanks have more bioload and less margin for error than single-species setups.
Related compatibility questions
Keep reading
Planning a community tank?
Check compatibility for any two freshwater species before you buy. Stop guessing, stop returning fish.
Open the compatibility chart →