I ordered Eco Complete Planted Black aquarium substrate from Petco to use in my 20 gallon cory tank. I will be getting lots of plants, so I thought it would be good. I thought it was sand, but it came today and it's actually small gravel.
I'm worried that it's going to be too rough on my cories' barbels. Has anyone ever used this substrate with cories or in general and if so, what was your experience with it. Did it alter any of your water parameters? My last Petco sand was a disaster and I don't want that to happen again?
Here's the exact sand I bought: