When I took her back to get another they tested my water and the nitrates and nitrites were very high. Never has happened in that tank before. Came home and did 50% water change, will do another in the next couple of days and see what happens when I do my normal water change a week after that. I will be buying strip testers because I had tested with my liquid tester and could not see that it was high. The strips will be able to be used on my puffer tank also which is good. All the fish in the tank are fine, thankfully, i could have lost my german ram but didn't. I will keep a close eye on the water perimeters until I am sure everything is ok. I got them to put the money on a gift card so I can get the fish when the tank is ok.