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coarse substrate
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  1. Substrate
    My 55g tank has medium gravel (slightly smaller than pea sized) on the top layer and laterite below. I found out that laterite doesn't contain a lot of macros, which explains why my swords arent doing well. My question is, is it safe to add ferts like osmocote plus gel caps or osmocote potshots...
  2. Fish
    I have had kuhli loaches with smooth natural gravel substrate, but now that I have been changing my substrate to Eco-Complete planted substrate, I am thinking maybe Kuhli loaches would not fair well with this stuff much like dwarf cordydoras. Will their barbels wear off sifting in this stuff or...
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