3 Turbo Snails in Coral QT

[FirstContact]

I have 3 Turbo snails in my coral QT and the water turns green fast.  Not sure if I should keep one or get rid of them all and not sure what to do with them if I want them out of the tank.  They poop so much, I don't want them in my DT.

 

Do people put a single fish in coral QT?  What are some good options?  It's a 30g tank.

 

Any advice? 

Edited April 22, 2018 by FirstContact