Fish dying/dead - Heavy Breathing - Need Help

[apex82]

Wow... thanks for that. I didn't even wash them with water before putting them in. I checked manual and nothing was mentioned, so I went for it. I guess at this point I am wondering if I should remove them and replace with the koralia 3's? Or the damage has been done and just let it work itself out and do another big wc tomorrow morning?

So no more Tilex(wife actually went to bed at 7pm with migraine after using it), no dechlorinator and wash anything plastic with water and vinegar before placing in your tank.