In this condition, the gill cover of the cats curl outward, initially involving only the solf part of the cover and later the hard gill cover. If the cause is not removed, condition will get worst, gill will get exposed, causing breathing difficulty and making the gill prone to infection. The end result could be fetal.
[SIZE=+1]Possible Causes[/SIZE][SIZE=+1]Diagnosis[/SIZE][SIZE=+1]Treatment[/SIZE]Small swimming space-Tankof size with length and width shorter then 2.5x and 1x the length of the fish.
-Fish has to "reverse" on turning-Move the fish to a larger tankPoor water condition-Check ammonia/Nitrite/Nitrate-Large water change
-Increase dissolved O2(add airstone)
-Increase water current
-message gill cover back(if fish allow)
-operation(if above failed)
When only the soft portionof the gill cover is involve and problem noticed early, conservative management might be possible. However, when the hard portion of the gill cover is involved, the condition is not reversible without surgery. Surgery is done under analgesia. The curled portion of the gill is either trimmed out or multiple pependicular(toward head) cuts is made on it. There is a 3rd hypothesis on the cause of gill curl. Infection of the inner membrane is believed to be the cause in this hypothesis. Infection cause the inner membrane to swell and push the gill to curl outward(just like wetting the sticky side of stamp). More research is needed to prove this hypothesis.