Been reading up a lot. But, just need basic opinions. I will be drilling my new 75g. Going to do the herbie overflow with two hole in the bottom. Here are my questions:
For a mixed reef tank, what size PVC should I use for the overflow to the sump? I was thinking 1" based on my reading.
Also, for the hole size, should I use a drill bit that is the exact size as the pipe? I.e., If I go with 1" PVC, do I drill a 1" hole, or should I go 1 1/8".
Finally, for my return hole, are there different sizes for the black return hose that goes into the tank? Should I match the return with the overflow (1")?
And finally finally - suggestions on how many gph for a return pump?
For a mixed reef tank, what size PVC should I use for the overflow to the sump? I was thinking 1" based on my reading.
Also, for the hole size, should I use a drill bit that is the exact size as the pipe? I.e., If I go with 1" PVC, do I drill a 1" hole, or should I go 1 1/8".
Finally, for my return hole, are there different sizes for the black return hose that goes into the tank? Should I match the return with the overflow (1")?
And finally finally - suggestions on how many gph for a return pump?