Probably more due to an ammonia spike from anaerobic bacteria buildup in the canister while it was off. I'd dose the tank with Prime or other ammonia neutralizer.
Sent from my XT1575 using Tapatalk
Sent from my XT1575 using Tapatalk
I have an 2 air pumps and a bubble wand in the tank.Does the canister output create surface agitation?
If so, the fish could easily have died from lack of oxygen.
I seriously doubt they would die from something like ammonia from being off a few hours.
Did only the filter power off or was it all the equipment...?I have an 2 air pumps and a bubble wand in the tank.
I still highly doubt the filter being off had anything to do with it. You could keep fish a tub for days as long as there is oxygen.I have an 2 air pumps and a bubble wand in the tank.