I don’t have a water tester kit available at the moment but I don’t test any of my other tanks and I never have really done it. The GT has a cave and plants in the tank as well along with a younger Severum that’s temporarily in there and a school of 5 giant danios. Next time I go to the LFS I’ll pick up a kit if it’s not too expensive but do you really think it’s nessarssary to test every few days when I’m steadily doing water changes? Also when I remove the severum how well would a GT get along with picture cats?