Sand or gravel

Tim Harrison

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Anything with a grain size of around 2mm to 3mm is good. But if you're water column fertz dosing as well, just go with whatever you like best.
 

alto

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24 Dec 2014
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5,909
Fish like Corydoras appreciate fine sand so bear that in mind.
Mine obviously forgot to read The Memo :banghead:
- completely ignoring their specially designed and installed sand zone in favour of sifting through the Tropica Aquarium Soil Powder

In answer to the OP, I’d (still) create some finer sand areas for the Corydoras
 

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