Can Denison Barb Live With Keyhole Cichlid?
Yes, Denison barbs and keyhole cichlids coexist well in a 30-gallon tank with temperatures of 72-77F and a pH of 6.5-7.5.
Why
- Denison barbs are fast-swimming mid-tank fish that grow to 4-5 inches and stay in constant motion, rarely crossing paths with bottom-dwelling cichlids.
- Keyhole cichlids are peaceful cichlids that max out around 4 inches and spend most of their time near the bottom or in planted areas.
- Both species tolerate the same temperature range of 72-77F and the same pH window of 6.5-7.5.
- A 30-gallon tank provides enough space for both species to establish their own territories without crowding.
What could go wrong
Keyhole cichlids can become territorial during breeding and may nip at the barb's fins if the tank is too small for both to claim space.
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 72-77°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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