I have a pro clear wed/dry filter and I want to add a 10 gallon refugium on the other side of the wet/dry. What is the best way to tie these two units together. I am eventually getting rid of my bio balls. I want to know shoild I drill a bulkhead into both and pipe them together. If so how high etc. Please any suggestions. I want to keep the wet/dry cause it's a great place to put my skimmer and such. Please help me . Thanks