aquarium drains please read

[Justin D]

I'm going with a 650 gallon aquarium 130x34x34 I was thinking 5 - 1.5 drains or 4 - 2" drains what do you guys think

 

[mfinn]

I'm going with a 650 gallon aquarium 130x34x34 I was thinking 5 - 1.5 drains or 4 - 2" drains what do you guys think

I would do the 2-4 - 2" drains, depending on how big of a return pump you plan on using.