Thank you very much everyone..
as you can see i made the middle section of the sump which was supposed to be the refugium, into the frag inspection(grow out) section. Found it to be easier and less stressfull for the frags instead of being in a frag rack being bothered by my fish lol, and being that theyre in the same water, they get to acclimate better when its time to trasfer to the DT
I dose manually
Cal Alk and Mag
currently dosing 50 ml of cal and alk , mag i dose when needed
Also vodka dose
The tank parameters are
0 ammonia
0 nitrates
0.05 phosphates
450ppm cal
10dkh alk
1400ppm mag
I try to do my water change every 2 weeks, about 25%
if time doesnt let me ill do it on the third week