I have had my tank set up for a few months now and algae keeps getting worse and worse. one type of algae will bloom and cover the tank and in a couple days a different type of algae will take over. I'm not sure what the problem is or how to deal with it.
euro-reef cs6-1 skimmer
koralia 1050 and 750 powerheads
6x 39w t5, 3 actinic, 3 10k on for 8 hours
temp: 78-79 degrees F
ammonia barely over 0
nitrate barely over 0ppm
phosphate barely over 0
specific gravity 1.021
I'm not sure why there is ammonia, I havn't been keeping an extremely close eye on tests. The rest seems to be pretty good. I switched to RO water about a week ago and have been doing 5g water changes every day but algae seems like its still getting worse. I have identified almost every algae in the book inside my tank at one point or another. As of this last week i started seeing specs of light pink coralline algae growing.
heres some pics: