Hey I currently have a 15 gal tank and cycling it with 5 large goldfishes, since they give out a lot of waste = faster cycling. I accidently bought an aquaclear 50, which is ment for a 20-50gal instead of a aquaclear 30. So I'm running the filter at the lowest setting possible. Currently I'm halfway done with cycling, the nitrites are spiking.
Now the problem is that ever since the ammonias have fallen that every morning i find one fish dead. The my main concern is how they died. I know that the ammonia levels and nitrite levels are leathal but every fish that has died has died in a different way.
1) Died, found stuck to the filter
2) Died, found at the bottom, i thought fishes were belly up
3) Died, found on top of the tank
4) Died, found stuck to the filter also.
There is one alive, and i might call him Darwin after this whole cycling but anyways.
Many questions were brought up by me.
1) Did my filter suck in my fish and that's how my fish died? This could be a possiblilty because i bought a stronger filter.
2) Did my fish just die and the filter somehow draged it over to it? S
3) Why did the fish that sank to the bottom instead of floating on top.
4) Why didn't the fish that was on top and bottom not get sucked in by the filter if the other two were sucked in? (Maybe distance of death from the filter?)
I was thinking of playing it safe and making some kind of protective shield so the fishes wouldn't get close to the filter but...i couldn't find one. I might have to just decorated it so the fish can't get near it.
What are your guys opinion on this?