About 4 months ago I purchased a 75 gallon running tank, with existing fish. About a month later I purchase some new fish for the tank, 1 got ICK, I went to my local pet store and was told to use Saltwater MarOxy and Greenex (Formula M 4-1H). In the meantime I have lost 7 fish, I have also set up a hospital tank and put the remaining fish in it and they are now healthy. I have moved them back into the big tank, but my ammonia levels are extremely high, off the scale. After doing much reading I have come to the conclusion that putting all the medicine in the tank I have killed my live bacteria and that is what I believe is spiking the ammonia off the scale. I am trying to control the ammonia with AMGuard. My question is do I remove all the sand and gravel in my tank and replace with new live sand , or can I just place new live sand on top of the old to re-establish my tank.
I have done three water changes in 1 week at 30 gallons a change. My pH is good, my nitrate is 10, my nitrite is .4, all reading are good except for the ammonia.
Any advise that you can give me to get my system back to normal would be greatly appreciated.
I have done three water changes in 1 week at 30 gallons a change. My pH is good, my nitrate is 10, my nitrite is .4, all reading are good except for the ammonia.
Any advise that you can give me to get my system back to normal would be greatly appreciated.