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amariel9
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How many serpae tetras can I put in a 20 gallon long with 11 panda cories? And how many black skirt tetras could I put in another 20 gallon long with 6 peacock gudgeons? My grandfather picked out the three tetras without knowing they need to be in schools, and now I'm trying to make them as happy as possible, and I know they don't do well in small numbers.