Watch out here they come

[Funky_Fish14]

Why not go with something like a 40-50g instead of two tanks that would take up more space?

I wouldnt worry about the sand sifters. Cerith dont spend all their time in the sand, mine dont spend more than 1/2 their time on the sand, and dont normally go into it. Stars will just go into the rocks too. I think that glued sand idea is a good idea as you can still syphon all the junk out without slowly losing your sand bed at the same time.

Chris