Originally Posted by
RichToyBox
You have given me numbers for ammonia and pH. The ammonia level is definitely too high. I would recommend you use Seachem Safe, Prime, Cloram-x or similar product that binds not only ammonia but also nitrites. I would also get a Seachem Ammonia Alert Card which will let you know if the ammonia is bound such that it is safe, or if it is unsafe, as that card will tell you when to add more binder. Your pH is not a problem if it is a constant pH, morning to evening and the best way to assure that is to test for KH, carbonate hardness, and if it is over 100 then the pH should be solid, higher is better. You did not report on the nitrite level, and if present it can cause brown blood disease, but the best treatment for preventing that damage is to add salt at one pound per hundred gallons of water.
It is always best to start with all of the water parameters and rule out deficiencies in filtration, pH crashes, etc. as it is cheaper to fix the water than to fix the fish and even if attempts are made to fix the fish without taking care of the water, the attempts will be mostly futile.
The BSDT is a parasite treatment, and a good one at that, but it requires 3 doses, one per day with 25% water changes. It takes care of most of the microscopic parasites, but for flukes you need a product like Fluke-M or Prazi to add to the third dose of BSDT. Unless the fish have sores, are flashing, isolating, breaching, piping, or otherwise not acting correctly, I would not be trying to treat for parasites as the treatments are very hard on the parasites, but also somewhat hard on the fish, and if not necessary that is stress the fish do not need.
If there are sores, then they need to be treated with some form of antibiotic as the sores are indications of bacterial infection. I like Tricide Neo as a spray or as a topical, and we can help with instructions, as the package instructions are for baths which take much more medicine. If you can get injectible Baytril or Amikacin from your vet that is an even better option. Some have had success with topical triple antibiotic ointment but I have never used it.
Please provide numbers for ammonia, nitrite, pH morning and evening or KH, water temperature and specific actions of the fish.