One thing I have heard is you can get a net that fry can go through but not adults, big enugh for a half sized guppy to go through . Then get a net that big with a little extra of the edges, put it a 4th of the way u in your tank and fill the bottom with java moss or something like that. Kind of like a mega sized breeders box thing, but it's your tank lol
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Water |
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Water |
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Moss. |