diablo30xp

I am gonna start to dose kalk but i wanted to know is how much to make for a 75g and 55g sump so probably about 100g total cuz 55g is sump and fuge. I have for live stock is 5 fish and 10 softies 1 lps and 3 sps 1 mini colony and the other 2 are small frags and about 70lbs of live rock and a 2" sand bed. I wanted to know whats a good base to start with?

I have a bad case of the dino's and can't get rid of it. My tank is a 75g 55 gal sump section and fuge in one tank. My parameters are
ammonia 0
Sg 1.026
ph 8.4
nitrates 0
nitrites 0
phos. 0
mg. 1400
cal 430
dkh 9
I have 4 t5 and they are ati bulbs. Got them 3 months ago. I run my lights from 8:30 am to 8:00pm. Can't find a way to get a handle on this and its frustrating me. I have this problem for about 2 weeks. I heard of raising ph but ...