Rainbowfish Spazzing

**Dimme13** · 05-14-2011, 05:10 AM

recently my rainbowfish have been spazzing out and eventually dying. they will start to fly around the tank then stop like they are paralyzed and sink to the bottom. they eventually come too and start swimming but the process repeats itself and the end up dying. I tested my water and everything is normal so i decided to do about a half water change then let it filter over night and everything seemed fine but i have it happing again to another fish. the others seem to be doing ok thank god but i was wondering if anybody had any idea as to what was/is going on?

Thanks

**Lady Hobbs** · 05-14-2011, 01:39 PM

What do you mean you let the filter run over night? Filters are to run 24/7. Are you putting dechlorinator in the water to remove chlorine? What size tank is this? If you want to keep fish, then please invest in a test kit so you know when ammonia levels have spiked and do your water changes as needed. Did you cycle the tank?

**Dimme13** · 05-14-2011, 05:41 PM

what i meant was i took the fish out and changed the water then waited till the next day to put them back in so that the new water could filter. it was just to see if that would make a difference cause nothing seemed to be helping. also yes i have dechlor and yes i have a test kit and the water is fine. it is a 30 gallon long with live plants, substrate, and rocks.