Zoo covered bottom FTW!
My next tank will have a normal glass bottom, then I will silicone starboard in and I will silicone it in well. Right now I have a starboard bottom, but have a gap around the edges, stuff collects in there. Also, when snails get the exact right size (which happens to all of them) they will get stuck in the edge.
Starboard does not stick to silicone, but if the whole thing is silliconed in well, as if it actually were the bottom of the tank, you will not regret it.
FWIW the small bit of water trapped under there will never harm anything.
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