Why you NEED RO/DI!!!

[bv_reefer]

Originally Posted by surgeonfish

Fisherman
It is true that you can spoil your tank with rotting/decaying food. However, we are talking about something different; possible contaminants from the water supply including chlorine, heavy metals (lead, copper, etc) not an explosion of bacteria from decomposing food.

-yup excess nutrients can cause bad problems, but i can't imagine them being any where near as bad as chlorine,chloramine,copper and all that gunk...