I have a green severum in a 55 and i was looking for a new tank mate but wasnt sure what the best choice was. I was thinking of either a firemouth, or a pearly compressiceps. Any advice or suggestions?
I would stay away from the calvus though as it is requires different water parameters than the severum. Calvus need very hard water and a pH of 8.6+ which stresses the severums out, severums ideally should be kept in neutral to slightly acidic pH (6-7).
They generally will not see tetra as food unless they have not been fed for about a week. Any catfish which has a solid amour back is fine as well. Severums can sometimes play with catfish as toys, while not wanting to eat them, they can cause severe life threatening injuries.
A single small Oscar would work for about 6-8 months but really they need a 75g tank.
Another suggestion if you would like multiple tank partners for the severum is any Rainbow Species...very colorful, good swimmers, and a nice completement to the slow moving (once they get bigger) green severum.
I have a variety of rainbows with my red sev - good suggestion. However, I would not keep any rainbows bigger than dwarf neons in a 55. Mine outgrew my 90 and now reside in the 125, and I would never consider putting them back in the 90. Aside from not providing the length, the 55 does not provide the width needed for such large and active fish.
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