Any fish can jump even if they're not known as jumpers. Just because they jump after months of not jumping doesn't necessarily mean somethings wrong with your water. I know sometimes I have to turn on nearby lights at night and my fish freak out and I wouldn't be surprised if they accidentally jumped.
Correct. But in this case it looks like a problem with his water quality.
they been in the tank for about 3 or 4 weeks now. and are alive and well this morning when i checked before i headed out. im thinking its the co2, it never bothered them before but i did take out half the plants in the tank recently so possibly co2 levels raised up with less plants uptaking co2? hopefully they are all fine when i get home. i put the glass top on the tank but it doesnt fit becuase of my intake out output tubes. the window screen is a good idea. thanks for the help
Do you mind posting water test results? I highly doubt excess C02 would make the water intolerable, as it would take a large amount of that to affect the breath-ability of the water. Perhaps the excess C02 has made your water too acidic?
Please do a full water test and post parameters. PH is the first place you should look.