Planted Tank Guru
Join Date: Jul 2008
Location: East Lansing, MI, USA
Silly question, I hope. Have you taken a piece of the tubing to a big box supply store and tried it in the fittings they offer?
The reason I ask, is our Home Depot offers three brands of PVC fittings. Fittings for one brand only fit that brand pipe.
My other suggestion / question is cosmetic. Can you simply start at the plates using a flange cobbled from a T, and plumb up from there?