I have 4 fry at 5 weeks old and since we had a power cut the 2 larger ones have started swimming weirdly (i think it was after power cut).... The heater and the bubbler in the bbs hatchery stopped working. So they had no food or warmth for at least 12 hours (was at work and was unable to get the power back on).
Yesterday they seemed like they were about to die... swimming vertically and resting at the bottom on the sides. I thought I lost them but after work today I came back and they're still swimming but still vertically or at 45 degree angle. And when they stop they rest on the thermometer vertically. The pic shows the 2 larger fry which is having this problem.
I'm not sure if this was affected from the lack of warmth or no food (I have fed them today and I think they went for some) or if the water quality is poor. Even though I try to make 50% water changes each day the water has a foul smell.
Anyone know what's wrong with them? Or had a similar case?
Just had a quick look at them and they're not moving much... At the bottom on their sides and only swimming up for air... which seems odd as I've heard they only start to develop their labyrinth organ at 7 weeks old?