- 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?
- 5-10
- 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?
- 71-80%
- How frequently do you change your water?
- Every week
- 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.
Hi everyone!
Just joined as I didn’t know such a great resource as you guys existed! I was wondering if anyone could help in identifying if the darkening on my delhezi bichir is normal or possibly an infection or even an ammonia burn. Got this guy from a friend 4 weeks ago and the little guy’s been growing like a weed since. I don’t notice anything out of the ordinary in terms of activity and he seems very active. The darkened fins aren’t frayed or showing damage, just hyperpigmented.
Any help would be much appreciated!

Just joined as I didn’t know such a great resource as you guys existed! I was wondering if anyone could help in identifying if the darkening on my delhezi bichir is normal or possibly an infection or even an ammonia burn. Got this guy from a friend 4 weeks ago and the little guy’s been growing like a weed since. I don’t notice anything out of the ordinary in terms of activity and he seems very active. The darkened fins aren’t frayed or showing damage, just hyperpigmented.
Any help would be much appreciated!
