I've heard people saying that your tank can become too oxygenated. How can i tell if it is too oxygenated or any and all info on this topic would help.
but you shouldnt really worry about it because at tropical fish temperatures plus how many dissolved solids you have in most aquariums water it would be almost impossible to cause over oxygenation to a fish
sorry about any spelling errors as it is 3 am when im posting this