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Aquarium Advice Freak
ok on sunday found 2 15 in rope fish dead in the tank they didnt survive 3 days after i bought them all levels were great before the new guys went in. so as a precaution since i dont know exactly when they died i did a pwc to play it safe now today come home from work did a water test [api master kit] all is good except nitrites are super red in color chart... never had this happen before so where do i go from here more water changes a what else....its a 75 planted tank did my dosing for my plants do this or what can it be?