I've been thinking about adding another filter(XP1) to my 40 gallon tank. I currently have an XP2 with an inline heater and a UV sterilizer but my tank is in need of extra circulation, and it wouldn't hurt to have a back up. Question is could I add a Y connector to the return line and have both filters come out the same spray bar? I would like to keep the least amount of equipment in the tank as possible, and was wondering if this would cause a priming issue? I could leave one vertical and one horizontal if need be, but this friggen acrylic tank has cut-outs on the top bracing of the tank for support that make hanging equipment in the tank a pain. Any suggestions are appreciated.