Substrate question

[Rogue951]

If you're having diatoms maybe you have a bigger problem with excess nutrients. If you can grow some macro algae or setup a refugium.
I think more water flow also helps prevent the algae from growing.

I have an assortment of snails including ceriths and nassarus(detritus eating) snails that like to go in the sand and come out at night. keeps my top later turned up.