I've been battling gha for months now. just decided to try nopox. problem is according to my hanna nitrate hr and my salifert po4 test kits im at 0.0 for both. MAYBE 0.01 on po4. so how should i dose this nopox? i obviously have nitrate and phosphate in the tank otherwise there wouldn't be a green shag carpet across the entire tank. the gha is so bad that it outcompeted my chaeto in the fuge. 10 hour total light cycle with ramps, 4 t5's for about 8 hours and then 2 ai primes that ramp up and down for an hour each way. its a 120g 40b sump with a foxface, sailfin, 6 line, yellow coris, 5 cromis, and a small pair of clowns. big reef octopus skimmer. i have some hermits left, definitely need more. one zebra turbo snail. had 2 tuxedos but they died. they ate none of the algae short or long. no matter how many 50 gallon water changes i do i cant get it to stay away. I'm sure if i spent $200+ on salt and did 5 days in a row of 50g water changes it would start to die off but id like to not do that

