BigbruiserAl
I ain't gettin on no plane fool
I would strap the moss to the driftwood and instead make a small pile of marimo balls in that central location. The heater could be moved behind the driftwood on the left.
There not marimo balls its java moss on 3 chuks of volcanic rock, it gives two small caves covered in java moss for the tiny shrimps. The heater will need to stay there as a moving bed bio filter is going behined the wood to help with the large volume of shrimp.