When I came home from work the tank had slowly started cooling down and he was still breathing hard and his belly was very dark so I imagine he was still very stressed. Now two weeks later after a water change with RO water, two new 200w heaters at either end of the tank and some nitrate filtering sachets to control the algae bloom he's perked up a bit, his belly is still a bit dark abound the edges and tail and his colour is kind of bland, though he is swimming around. The problem is he doesn't seem to be normal, he's now bashing into everything, missing his food (as if he cant see it) and is generally not himself, the water parameters were checked by a fish shop near my work and they said it was fine though I don't know what the values were because my mum took the sample of water in to them as we dint have any kits of our own (I'm probably going to get flamed for that). Has has been eating though as the cockles we place in there are being smashed open and the cockle inside has been eaten, but its as if he cant see them, we've had to feed him prawns by using our plastic eheim grabber and physically placing them in front of his mouth which he furiously eats so we at least know he's hungry.
We initially thought he was blind but the shop we took the sample in to suggested that if he was blind his eyes would cloud over, however he does have some kind of strange rainbow effect on his eyes, kinda like petrol.
What would the chances of him being brain damaged?! He isn't swimming upside down or anything, just bumping in to everything. I'd hate to lose another puffer to a dodgy heater, I lost two South American puffers in 2004 when my jewel heater cracked open overnight
