Plumbing a 10g into my 75g

[Cjsanders757]

I wanna my plumb my 10g into my 75g once it set back up. What size bulkhead, I'm drilling btw, for the drain 1" and the return 1/2"??

 

[CoralHut]

Depends of the amount of water flow you want out of the hole. A 1" hole is good 300GPH downflow so depending on what you have running back into it will determine how much return size you need.

 

[Cjsanders757]

I want it to be a mixed nem tank and anemone shrimp.