These things are driving me nuts lol. Dont always cooperate for some reason. I have one for the pandas tank and now that stopped working. I dont know if its the wall itself or the pump. I am gonna try a new pump,the next size up I think. Might try a new air valve too.
I have to fight with Rojas air stone too. Darn things. Elvis has one now as well,and his air pump is dang noisy!! Its a different brand then all the others. I wanna get the same brand,but have to change the tubing. Ill wait till hes due for a wc to do that,dont wanna mess with his tank too much lol.