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Discussion Starter · #1 ·
i have a 55 gallon planted discus tank and i have a cottony white growth on my plants and its on the back and one side wall
all my tests are on point
0 ppm ammonia
o nitrite
10 - 20 ppm nitrate
ph is 6.8 - 7.0
i dont use co2 but i have air pumped in via airstick
i do a weekly water change 25 -30 % algea does grow brown was wondering if something is wrong somewhere in the tank that i cannot see i use iron fert for plants.
 
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