Originally Posted by dancersmama79
i read on another site it can be due to toxins in the water and since his tank is cycling i went ahead and did a 50% water change and added aquarium salt... the gill plate covering the gills is what is extended and showing some paleness to them but hes not showing any distress like he cant breathe or anything like that theres no stringiness around his gills or anything and hes swimming like normal... at least he has been since the water change...
There can be a number of reasons why the gill plates go pale and without physically looking at the fish and water parameters and conditions, my best would only be a guess. However, if you see a marked improvement with a water change, that is probably your answer. Recovery after a water change usually means you had bad water. Just keep your eyes open to changes in the fishes behavior.