shnapper20
Community Member
hi water parameters have been constant for months alk 9.5 ca 430 nitrates 5ppm magnesium 1460 , the phosphates were slowly creeping down, tried feeding more , leaving socks in longer , reducing fuge intensity and the time they were on. My corals sps mainly were losing their brightness , elected to dose trisodium phosphate, mixed 1/4 of teaspoon in 200ml of water and tipped 50ml into my 200gall tank. waited an hr checked with the hanna ulr phoshate checker po4 had risen from.01 to .25. I than set up a drip feed to dose 3ml of rx phosphate remover, the rx was diluted with 500ml of ro water and dripped through a 10micron sock it took approx 3hrs to dose checked po4 and I was back down to .06 for my po4 , 2 days later ive lost 2 corals so far that have bleached out. What caused this? what did I do wrong? a week ago I added 10ml of vibrant to try and help with the removal of some diatoms could this have done anything? I have dosed the rx before with no ill effects on the corals. Would the rise in po4 for a period of 5hrs cause this? thanks john
