I have a 400 gallon system that consisted of mainly sps. A month ago I was noticing corals looking pale before i crashed my tank with the parameters being alk 8.4 - 8.7, cal 400+, no3 0-3ppm (didnt keep up with potassium nitrate dosage), and po4 0.03. At the time i ran out of reagent for my po4 test kit and used an expired one, the result was a big spike to 1.0. As a person that overthinks a lot i panicked and packed in a bunch of rowaphos (which i found to be my second biggest mistake) into a tray that was placed before my return pump. A day after that my stylos, seriatopora, and pocilloporas have began to stn and rtn but suprisingly not the acros or montis (yet). A month later i still have acros hanging on for dear life and some still maintaing colour as well as some polyp extension.
What Ive found and realized i did wrong was not maintaining my no3 at 3-5ppm (which is why i believe the corals colors were fading), not using the proper or an unexpired phosphate test kit, and that i put too much rowaphos that it probably killed my corals by dropping the alk/ph and not because of stripping out my phosphates in such a short amount of time.
The system today sits at recommended water parameters but still have some corals not regaining color (from brown) along side with a few burnt tips on some with a few still rtn or stn here and there.
Im here looking to see if anyone has had or hear of anyone going through something like this and want to know what to do and how to get the system functioning so that i can restock and not lose corals that i add into it.
What Ive found and realized i did wrong was not maintaining my no3 at 3-5ppm (which is why i believe the corals colors were fading), not using the proper or an unexpired phosphate test kit, and that i put too much rowaphos that it probably killed my corals by dropping the alk/ph and not because of stripping out my phosphates in such a short amount of time.
The system today sits at recommended water parameters but still have some corals not regaining color (from brown) along side with a few burnt tips on some with a few still rtn or stn here and there.
Im here looking to see if anyone has had or hear of anyone going through something like this and want to know what to do and how to get the system functioning so that i can restock and not lose corals that i add into it.