bro, thanks for the step by step advice.
because the the overflow to sump consist of bio balls + coral chips (yes they are filled with "sai" and dirt) think this might be the culprit behind the 100 nitrate (salifert test kit)..
If i just let the wavemaker do the job, ain't it wihtout any filtering (this is my concern)
any advice to this? (how come can let it without filtering for 1/2 weeks), worry about the fishes haha