I have a 50 gallon tank, with 1 plecostomus, 2 glass catfish, and 2 ghost shrimp. The cats are about 2 inches each, the pleco is about 5 inches.
My filter is tiny, it was made for 15-20 gallon tanks, and it has worked fine (the tank is spotless).
Will getting more glass cats be a burden to the filter? I want them to be in a larger school, since they think they're in a school of only 4 right now (they hang out with their reflections).
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