Right now in my 10g nano I have about a 1" layer of sand and I'm thinking of putting a layer of coral on top. The reason for this is I'm planning on getting a watchman goby and pistol shrimp and the videos I have watched have the coral.
Will there be a problem doing this as far as filtration ( I have a cuc in there already, crab and snail)?
Will there be a problem doing this as far as filtration ( I have a cuc in there already, crab and snail)?