Ive always had 2 air stone i change one of the airstone for a sponge filter just to test it out. The problem was identified as my turtle stirring up the sand bed and that cause the bacteria to escape and get release in the the water like air bubbles was coming up. So i did a water change and will keep doing so until the parameters are safe. Anything else i can do. Thanks for the help and insight im new to monterfish keeping