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  1. Beginner Freshwater Aquarium
    Hello, all. I am fairly new to this-only started with a 10 gallon in January-but up to 3 tanks now and I'm having problems with one of them, my 55 gallon. We have had no sick fish (stocked with 4 bichirs, snakeskin gourami, pleco, pictus, red-tailed shark, and 2 clown loaches), but our sand has...
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