11-11-2011, 07:37 PM
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HELP! Strange things going on with my water changes!
So, I have a 44 gallon planted aquarium. I do a 20% water change once a week. The last couple of weeks, I do my water change Saturday, everything is fine. Sunday I go check my tank and everybody is at the top gasping for breath! I killed 2 rams a couple of weeks ago and wiped out (almost) my school of tetra's the next week. I don't understand it. I make sure my CO2 isn't too high. I use the same bucket to do water changes. Nothing has changed. The next day, it's like everything is back to normal. My water tests as always. It's getting where I'm scared to do my water change tomorrow. I don't want to kill what fish I have left. Funny thing. My false Juli Cory cats don't seem to be effected! Oh, but my shrimp are. The last couple of times I turned off my CO2 and added a pump and air stone to see if that helped.