I have a clown loach that keeps trying to swim to the surface but I can't tell if he's wanting oxygen or if he's just playing in the wave created by the filter?? None of the other fish are doing it but I've heard clown loaches can be 'indicator' fish? No physical indications of anything wrong. Could this just be typical playing around or is he stressing out?
In case I'm asked...
Ammonia/Nitrite = 0
Nitrate = 5
pH = 7.0
Filters: Whisper Power Filter 40 and Penguin 200 Biowheel (I'm changing filters so I'm running both at the same time to avoid a cycle.)
I run C02 24/7 (midway up the latter) and an airwand after dark.
In case I'm asked...
Ammonia/Nitrite = 0
Nitrate = 5
pH = 7.0
Filters: Whisper Power Filter 40 and Penguin 200 Biowheel (I'm changing filters so I'm running both at the same time to avoid a cycle.)
I run C02 24/7 (midway up the latter) and an airwand after dark.