my clown fish is so slow, it doesn't react when there is food and when it's almost at the bottom, it eats the food... is that normal? And is an air stone good for a qt tank? I heard they are bad...
All 0Yes an airstone is good, sometimes it will perk a fish right up.
Very often it's the water parameters in the tank which can cause this. Could you tell us what your amonnia, nitrite, nitrate, salinity and temperature are?
If all the above are ok then it may just be normal fish behavior but I leave that to the advanced members. Seems abnormal to me.