@Mmathis ,
thank you for your post,yes,i don't think i have a lot of experience with it.
but i do know the answer to your question,(or atlas i can try...)
- How long has THIS pond [not another pond] been set up with a filter and with fish?
around 4 years.
- How many [total] fish are in this pond?
four koi, with 5 cat fish.
- How deep is the pond?
around a meter.
- What kind of filter do you have? If you don't know, can you describe it and/or take a picture for us?
i will get back to you with the filter.
- Do you test your water for ammonia, nitrites, nitrates, pH? If you don't, please get a liquid [drops] test kit and test the water. Report the results in numbers.
pH 7,i think thats it.
- I can't tell what country you are from. What is the source of the water you use, and is it treated in any way to remove chlorine/chloramines?
india,ground water,no chlorine.
- Have you added any new fish lately?
no.
- Is there anything near you where people with koi [or other ornamental fish] have groups or clubs where they get together to talk about their hobby?
no.
- ......and there are probably more questions, but don't want to overload you.
alright.you can ask for more if you need to .i am ready to answer it.
i am not trying to breed the one with fungus.
i will get back to you soon.but thank you a lot.