sorry to ask a dumb question but what is NH3 and how do I test for it? same with NO2. the fish look like their scales are lifting off of their body, then comes the cloudy eyes, then fins become tattered and they can't swim well, then comes death. weird though cause my vlamingi tang was so fat and had no signs of stress and ate like there was no tomarrow and just died without any signs. as for the firefish that I lost same issue looked fine and no visible signs of parasites or illness and just disappeared one by one. But I think that might have been my dwarf golden moray's midnight snack. No witnesses or evidence of it but you never know. all my other gobies are fine and don't seem to be effected by it. all my tangs gone except for my fowlers. he just got ich and is looking way better. my manderin goby was fat and healthy and found him dead over night. lost 15 fish total so far. hopefully no more. I added reef carbon and still have chemi-pure elite running and you were right about the algae. plus phosguard in phosban reactor. the brown diatom has not come back and I had all my lights turned on. usually when the lights are all on the diatoms are everywhere. thank you so much for your advice helped out alot. how long should I run the reef carbon. it says for only a few days and remove. I run chemi pure elite at all times and replace every 2 to 3 months.
now as for the skimmer. I tried to use it today and it still overflows but at a much slower rate. seems like there was too many organics in the water. the carbon and phosguard are doing a great job.
thanks again for the advice. I was losing my mind with the diatoms. and now my tank is starting to look good again. just a bit empty because the survivors are 2 marine bettas a mated pair. don't know how that happened. 1 mystery wrasse, dwarf golden moray, 1 randalls goby, 1 engineer goby, 1 purple tile goby, 1 flame hawk, 1 cherub angel, my pair of gold band maroon clowns, 1 watchmen goby, and my fowlers tang. so actually lost 18 fish. had 31. feel like a jackass.
