Quote Originally Posted by enriquerivas
Im adding 3 gallons of water to my tank due to evaporation per day and im not using RODI water.
I would check the parameters of this water. I would imagine it is the cause, phosphates are high I'm sure.

I would invest in a RODI unit soon, especially if you are serious about this hobby. It was one of the best things I did. My algae blooms stopped very shortly after this addition.

Good Luck !