Anyone know what this is? I did a water change. They hate them and always cram in the pot like this so that's normal. This time all this white stuff started floating out. One fish is covered, you can also see it on the top of the pot, and it's all over the surface. Happened almost instantly. Did one of them blow their load or is this something I should be concerned about? Ammonia 0, nitrite 0, nitrate less than 5, pH 7, temp 79.
