Current water parameters are, 1.0ppm ammonia, 0 nitrates, 0 nitrites and 7.1-7.2 ph water is 77 degrees. I accifentally stirred up my black flourite sand substrate about a month ago causing what i would assume was the release of nutrients etc into the water column. Ive since then added more sand to my already 3"+ substrate bed to cap it off since i could not see any visible particles of the root tabs i wanted to make sure it was cover up. Only added about 1/8-1/4" more. Ive also done 40-50% water changes 2-3 times a week. Over time the ammonia comes back and its seeming like its coming back to levels of about 1.0ppm more and more slowly as i do the water changes but its still coming back. Can abyone offer and other advice as far as this goes? Also managed to kill all the freshly planted dwarf sag that i had planted, thought it might just be meltback from readjusting but ALL the leafs died on each bunch so i believe theur toast. Only other chems is use is prime and stability with each water change and 2× weekly does of excel and florish, flourish +iron.