I have been dealing with fin rot that resulted from my Betta biting his tail. Thus has been ongoing since the beginning of September. I was treating this with paraguard Dips and then he contracted popeye. He got much worse, i tried fin and body cure with no results and it actually progressed to body rot, so I got Erythromycin whi h also had no effect. I started dosing with Neoplex, salt and doing hydrogen peroxide swabs per advice from my local fish store. Things stopped progressing but are not getting better. I was also doing 2 gallon water changes daily, replacing lost medications and salt. I got Mellafix but I think he needs a serious medication at this point. After doing some research I finally found out that he has saprolegia on the affected area and that is why nothing has helped. Yesterday I cleaned out his tank, removed the substrate ( I had to treat in his main tank) and cleaned everything with hot water and hydrogen peroxide. I then seeded the clean tank and sponge filter with some media from a healthy tank. I put an Indian almond leaf in last night and he was swimming around like his old self. As of last night there are no meds in the tank, I thought he could use a day off from all the meds. Through all of this he has been eating and not acting very lethargic. I got Ich x to begin treating with today but my question is what to use to treat the underlying infection? The Erythromycin did nothing, as well as the Neoplex.
Parameters: (before cleaning out tank)
pH-8
Nitrates- >20
Hardness - not sure but it's hard
Nitrite- 0
Ammonia- 0
KH/Buffer- not tested
Water Temperature 78, heated with preset heater