Planted Tank Obsessed
Join Date: Jan 2015
Location: Newmarket, Ontario, Canada
A couple of tips:
1) At times you may want to slightly change the direction of spray (i.e. pointing more towards the surface for agitation or more towards the front). You do not need to glue the PVC in the tank which will leave the direction adjustable. If you insist on glue, then considering using a threaded tee and threaded adapter.
2) If the circulation of the water comes from the spray bar (i.e. and not a powerhead in the tank), then you will want to stay with a slightly smaller hole. Undersize your holes by 1/8 or 1/64" and test the result. If the spray is too strong, drill up by 1/64" until you like the result.