Can Congo Tetra Live With Keyhole Cichlid?
Yes, Congo tetras and keyhole cichlids coexist well in 30 gallons or larger because keyhole cichlids are peaceful cichlids that do not prey on small tetras.
Why
- Keyhole cichlids are among the most peaceful cichlids, growing to 4-5 inches and not displaying predatory behavior toward tankmates.
- Temperature overlap of 73-78°F suits both species without compromise.
- pH range of 6.0-7.5 covers slightly acidic to neutral water, matching the preferences of both species.
- Congo tetras grow to 3-3.5 inches, which is large enough to avoid being seen as prey by adult keyhole cichlids.
- Keyhole cichlids are shy and spend most of their time near plants and decor, leaving the open water for Congo tetra schools.
What could go wrong
Keyhole cichlids are shy and may hide constantly if kept with very active or boisterous tankmates. A heavily planted tank helps them feel secure.
Gear for a shared tank
Sized for the 30 gallon minimum this pairing needs. Affiliate links — we earn a small commission if you buy through them.
AquaClear 70 Power Filter
Oversized filtration is what lets you stock two species together without water quality crashing. Rated for a tank slightly larger than the 30 gallon minimum.
Eheim Jager 200W Thermostat Heater
Holds a steady temperature inside the 73-78°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
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