hey everyone so ive currently setup a new aquarium but I don't know my fish in it yet because it hasn't cycled yet so my fish are in the tank they were in but past couple days my goldfish has been at the bottom of the tank and not moving around at all he looks healthy no signs of any infection I tested the water and nothing perfect I did a water change and change the filter still nothing any advice I also have a bala shark in there and hes perfectly fine