When a discus has long stringy poop the first thing that comes to mind is Internal parasites. Among all intestinal protozoa Hexamita is the most notorious cause of white poop in discus. Today is Sunday March 16th.

Oscar fish Other than hexamita some believe that spironucleus which is known for causing hole in the head disease in I purchased a baby oscar from a fish store on friday march 14th and brought him home and put him in his new tank and all seemed well. I chose for the first day not to feed him as i wanted him to get use to things. On saturday i plopped some frozen blood worms into his tank and watched him eat them up. I noticed a weird poop color coming out of him though. Especially if it concerns white poo. White poo again is a sign of intestinal parasites in the fish. Any time a fish has white poo i recommend treating the entire tank with such meds as pimafix which treats 95 of internal and external parasites in on fish. I use pimafix for all of my fish and any parasites they may have.
My son has 2 oscars. He also recently added a sucker fish. We found the sucker fish dead yesterday with bites on his body. We think the oscars attacked him. Now this morning one of the oscars who stopped swimming as much has a white string coming from it s stomach. There are also the same strings laying on the bottom of the tank. The strings look like they have a head. Ich is a highly infectious disease so if you see white spots on one fish it is likely that the others in the tank have already been exposed. For this reason it is typically better to treat the whole tank rather than quarantining the infected fish.
Treatments for ich include salt baths increased tank temperature potassium permanganate After i saw the white stringy poop last night he started to have another one. However after about a 1 4 inch or so of it being stringy and white it was attached toa normal looking pretty large and girthy red poop. He still cont his above activity ie sitting on bottom for a few min than hovering for a few min. I have been treating them for 1 week and a few days now with jungle parasite clear 30 water changes and aquarium salt. Sadly not much has changed at this moment other than them being a slight bit more active. The poop is white and stringy almost mucus looking. I hope this treatment works.
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