- Have you tested your water?
- Yes
- If yes, what is your ammonia?
- 0
- If yes, what is your nitrite?
- 0
- If yes, what is your nitrate?
- 0
- If I did not test my water...
- ...I recognize that I will likely be asked to do a test, and that water tests are critical for solving freshwater health problems.
- Do you do water changes?
- Yes
- What percentage of water do you change?
- 21-30%
- How frequently do you change your water?
- Every two weeks
- If I do not change my water...
- ...I recognize that I will likely be recommended to do a water change, and water changes are critical for preventing future freshwater health problems.
I have my koi in the pond normally all summer but I took three of my favorite ones out to put in my 300 gallon tank since I recently took it down and has been sitting empty. All the koi in the pond are eating and they seem happy. But when I took these three out I've noticed they have red blisters on their back fins and even my one gold koi has a red blister on his bottom lip I only have pictures of the back fin as of right now. Can you please help me identify it.
