10 is too high if your level of nutrient is low. That will cause all sort of problem like RTN, STN etc..
Sweet spot is natural sea water, 7.5 to 8 is ideal.
Low nutrient is good for SPS but they do need food then. Especially if you have a weak light, no wonder they are dying in your tank.
with low nutrien you need a good light, good food on regular basis and around 8 kh, no higher.
People think that SPS only live from light alone but in nature there is tons of zooplankton. This is also why SPS grow much better and faster in a mature tank of at least a year old, because by that time zooplankton and all sort of larveas have started to colonize the aquarium.
I feed my SPS every other day with zooplankton food like Fauna marin, reefroid, coral frenzy and I feed Zeovit amino acid and coral vitalizer each day. This makes all the difference in growth and color.
Quote:
Originally Posted by mrhasan
Isin't 9-10 dkH like sweet spot? None of the params fluctuate other than dKh falling from 10 to 9 in 2 weeks. Not sure about other traces like iodide and stuffs.
And I thought low nutrient is preferred by SPS :|
Its so confusing!!!!  |