AEG
New member
Can anyone tell me what's going on with this black lump on one of my axolotl's gills? Is it some kind of fungus? Not sure how worried I should be... It's been there for a while, and worried that gill in particular is not looking too healthy - seems like minimal frills? The others all look normal though, and he otherwise seems healthy and happy, eating well etc. The tank is well cycled and I regularly test for amonia / nitrites etc and all seems fine I think? He had a period in the summer when we were in heatwave when he was off his food and obviously not happy but that was short lived and temperature fine now (we're heading into winter now in London). Apart from that not aware of any problems. Have tried to take some pictures, sorry they're not great! Any advice would be very much appreciated!