the gravel on the land side needs to go away. it will mix in with the other stuff and some day it will get swallowed. and in the water I would use river rock, not small gravel. put the fogger on a timer so only on at dawn/dusk. I didn't like my fogger. it rusts out easily too. they aren't really worth the money. that is nice though. some cork bark half buried in the substrate makes a good cave for them to hide in.