mysterybox;795158 wrote: Seachem test kit for phosphates is notoriously inaccurate.
get an Elos low range phosphate kit.
switch to HC GFO and change weekly.
add a carbon source such as vinegar/vodka
Large weekly water changes of 30%.
If you truly have Bryopsis then in addition to all those nutrient exporting, you'll need to try one of these three methods:
1)Using only Kent's Tech M Mag, raise you mag 100 per day until you reach 1800, and maintain it there for a month. Please either find Dave's thread (acroholic) or pm him for specific instructions.
2)Take you rock out and wash with 3% H2O2 for five minutes. I have a thread on here somewhere that I can point you to.
3) pray