Tropical Fish Forums

[luke2214]

I'm trying to make a Amazon biotype in a 40 gallon aquarium. The substrate is sand and as of now I have a black kuli loach to stir the sand on the bottom. I know that corys like the bottom. Do these fish stir up the sand? do they school? As of now I have 4 black skirt tetras, neons, emperor tetras. Anymore stocking suggestions? I also have a verity of sword plants.

Thanks
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[nikelodeon79]

How many of each tetra do you have? You really should have at least six of each species.

Corydoras do sift through the sand at the bottom but do not really "stir" it. If you don't manually stir up the sand from time to time, toxic air pockets will form. They are a social/schooling species and appreciate numbers six or higher. The more corydoras, the more active and fun they are. I'm not sure how much room you have available in your tank, however, due to the number of species you already have.
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[luke2214]

4 BsT I plan to get more, 7 emporor tetras, and 10 neons. My tank has a lot of plants and real driftwood. I stir the sand once a week to get the air pockets out, but I would like fish to sift the debris around. How many cories should be together and what kinds are good?
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