Return line

[cordeiro]

i heard from a buddy of mine, and hes doing up a 140g and he said somthing about the return line should not be smaller then 1".... pex is 3/4"... its your tank but i would go with the pvc pipe even if its a bit more.... the tanks (reef) aint cheap, and not somthing to mess with, and yes.... you can get the fittings out of pex, but you still need to crimp the line with a copper ring... and lets say some how theres a small pin hole in the line/ or not crimped on tight and u dont see it and water passes the copper ring and drips in the sump