Phosphates
When I check for phosphate, I get zero. However, I'm getting brown hair algy.
2.5 Gallon
Auto-top-off
Temp controller
Ro/DI water changes (35% once a week)
Current PCs 37 watts (8hrs a day)
AC70 with fuge (ligt on 24/7)
Carbon/filter pad (change once a week)
Four blue leg...