Carbon for drainage

[MikeM670]

I would put a barrier in. Do you have any landscaping fabric or plastic window screen? Just cut a piece to fit that area and you should be good. You don't want substrate sitting in water or falling down between the rocks and carbon. Then the whole are will get clogged up.

[Leefrogs]

I got screen, sorry I didn't answer lastnight, phone died. Going to do it as soon at my munchkin goes to sleep. He will be messing with her and shell be freiked out as it is! Thanks again.