can too many fish be the reason?
I have a lot of fish in my heavily planted 45g. Can the respiration from the fish produce enough co2 to support the plant load?
Can a lot of fish reduce the amount of o2 in the water to the point that when there is no aeration the fish gasp? I would think that the plants would create enough o2 for the fish.
The surface agitation is minimal.
2 three inch discus
12 red-eyed tetras
8 black neons
6 serpae tetras
4 otto cats
1 cory cat
1 twig cat
2 blue rams
1 common small pleco
I know its a lot but until recently it was a peaceful happy little aquatic world.