okay since my tanked crashed do to my son trying to give them a bath with soap.I have the time to drill my tank and make a fuge /sump …so here it is im wondering what size holes i should drill i have a 37 solona tank and the sump im useing will be a 29gallon was.
trying to determine what size hole for the return and the drain line and what size drill bits i need to buy
45 mm bit and 2 one inch bulk heads. One inch drain should be fine and 1/2-3/4 inch return should be fine but you can still use a one inch bulk head and size it down.
+1
FYI
