Hi there, my axolotl has recently been looking quite pale - he has been eating and behaving normally however, and his gills are super long and fluffy. It seems some parts of his body are a little fluffy, but mostly the only difference is the paleness. I have done water tests and the nitrate and ammonia levels have spiked a bit, so I have been doing daily 30% water changes to combat this. I am still unsure as to whether to tub / salt bath him, as I don’t want to cause him any unnecessary stress! Should I salt bath him or just continue with water changes for now, since he is behaving normally ? (Photos attached)