Many animals can adapt to conditions other than what is ideal , tho this one would imagine gives them stress? Not enough stress to kill them but to shorten thier lives and compromise thier immune systems?
By keeping fish and corals as close to NSW as possible this is one aspect you can lessen the stress for them , how far the parameters can swing and still be acceptable I dont know ?
How far out of bonk would the water have to be for things to die off?
Its horses for courses if you are happy and the tanks happy , Your tank is beautiful and your SPS polyp extension cant be faulted
:cool: so what ever your doing its right and on reflection maybe i should adopt a less analy retentive attitude towards parameters :cool: