07-25-2013, 03:52 AM
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I think that 2 dwarf gouramis and 6 neon tetras will be good in a 20g aquarium. I heard chinese algae eaters get aggressive when they grow up and may hurt your fish. Also, common plecos will grow too big.
Also, if you haven't, read about the nitrogen cycle.
Last edited by Austin; 07-25-2013 at 04:04 AM..