About 2 months ago I set up a new 55 gallon tank and in it have 8 congo tetras and 3 pearl gourami and a few smaller fish. I did a lot of research because I always want a peaceful tank. Things had been fine and the congos have grown fast and are quite active. So suddenly the 3 gourami are spending most of their time in the hollow log, the male won't even come out to eat! Been watching them and I see no aggression going on. It appears the gourami just may be intimidated by the congos and their very active back and forth swimming. Either that or possibly this is breeding related?? But I have top floating plants and there is no bubble nest. Any thoughts or advice? I have read that gourami don't like zippy tankmates.
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