Hi guys. I would like to ask for you opinion i just notice my duncan green base/stalk receded upwards. It went from 2 heads to 10 in a span of 2 months. My alk is around 8 mg is 1250-1300 and calcium is 430. 0 on my ammo and nitrites and nitrates. I remove my phosguard last week and left just sponge and purigen on my hob filter. Im feeding my corals with mysis once a week but used to be every other day because i have some bryopsis issue. Last monday i tried feeding my corals with reef chili and other than that i havent done any change in my tank. Im not sure if it is my flow but i have my duncan same spot for 6 months.

