Holy crap! I have been using 170ppm TDS water!

[H2o2]

I live on okanagan lake and use water right out of the lake with a tds of 125 and and ph of 8 and have for years and have had 1 algae bloom over that time but i am in to deep this time so i am going to put in an ro unit with no di for the spring and summer months and not in the winter because in the winter water is crystal clear same as summer but spring with run off causes some cloudiness but i think maybe the mineral in the lake also helps and 1 example is that red pipe coral grows like rats