Originally Posted by callistra
Maybe but I think first lets deal with his water. Stop the Ph drops, and acclimate to the native ph of the water. Test for ammonia after using prime and get him into some water that's treated. If he's still darting after that then I'd say treat for parasites. Darting can also be a problem with water quality and ammonia, but if that's not it then it's probably parasites.. though I'm not seeing any signs from the video maybe his coloring is masking it. Like if you turn off the light and shine a flashlight on him is anything yellow? Or can you see any sprinklings of salt? Also check his gills.. try to get him to flare and look under. It could also be internal so look at his poo and let me know if it's anything but brown and if it's too long and stringy.
There are some sprinkles of gold, but I'm not sure if it's his natural coloring or not. I will keep an eye out for an increase in the metallic gold color just in case.
Another question: There has been white stringy cottony stuff floating around the tank lately. I would say that it may be from the food, but he eats every single pellet I drop. I don't drop another pellet until he eats it. It's growing on the heater and the decorations, too. What is it, and what should I do?