Originally Posted by
jcardona1
For bottom drains, I would go with the Rhino brand. Expensive, but they're built like tanks. In my 4000g I intalled a Rhino non-aerated drain and to save money, an aerated Koi Toilet drain. The Koi Toilet is really poor quality. Several screws stripped out while tightening the lid and the 4" connecting pipe is not true-to-size so the coupler would not seat all the way. Night and day difference between the other Rhino drain I used. I will never again waste money on a Koi Toilet drain.