Im treating for ich with copper power in a very large tank(125 with no rocks/sand) and the ammonia is rising and since i took and disrupted out all the sand the nitrates rose to like 120 but i am installing a bio pellet reactor(to alleviate nitrate), this is the qt tank, I added amquel plus but it didnt touch the nitrates and brought the ammonia down by like .2 now, i cant add more because it took down the oxygen down already, can i add more amquel+? Is it like "prime" which you can overdose 5x? Or will 5x more amquel+ suffocate the fish? Im getting prime tomorrow can i add 5x prime or will that suffocate the fish as well since it'll take away oxygen? There is one pump pointing up and one pointing straight