It a 55 fowl system, stock blue throats,fosteri hawk,pink skunk clowns,small blode naso.nitrate 50,nitrite 0,ammonia 0, ph was8.5 as of lastnight,dk 12. It has a hob filter and protien skimmer and 2 koralias.
well your nitrates are a little on the high side, your pH could be lowered but isnt bad. Im not exactly sure why you think your tank is crashing? are you just overreacting? how does ones tank act like its going to crash. are your fish acting funny?