You will find people on here that use ro/di water, some that only use ro water, some that only use filtered water and some that use plain old tap water or well water to make their saltwater from. The ones that do it one way will swear that their way is the way you need to do it too in most cases.
I started my 175g system with filter only water because I was a dummy and didn't realize that I didn't have the ro membrane in the canister. Ran it for a few months doing water changes before I realized the extra ro membrane I got with my ro/di unit wasn't an extra one, lol. I now use ro/di water for water changes but I have never had an algae problem from using filtered water.
__________________
Tri-State Reef Club
Serving the Indiana,Kentucky,Illinois Tri state area.
|