Some update to this thread.
to start with bad ones. Tank has been strugging lately due to a combination of the follwoings:
-Severe parameters shift due to a mix in 2 part bottles ending up with only Kalk being double dosed for 2-3 weeks (alk up from 8.5 to 13.8 and Ca down to 300) I normally dose 100 ml of each so tank was getting dose with 200 ml of part B only.
-Lack of water changes less than 20% in the last 7-8 weeks.
-many corlas getting stung by others next to them.
Most corals still look fine but I lost 3-4 of my euphilias and 2 Accro colonies, one more is nearly dead and 2 others are not doing well.
-BAd RO membrane last month that was giving a TDS of 60.
-some temp (up to 82-83) spikes when we're losing power as chiller wasn't connected to BU generator...
to add to that my Frag tank has been showing some Cyano that's growing right on the corals. no changes in lighting however I did change the eggracte racks recently which might have started it. Still it could also be linckes to the Hig TDS water used for maybe 1-2 weeks including a waterchange with same water...
Lost colonies:
Olive green mille (pic froma few months when I got it)
Now
Light mille:
Now (in the middle)
nearly lost my Orange digitata (this is my worst loss if it ends up dying as I'm losing the only frag I have from it too)
My Suharsonoi lost a branch but luckily stopped there. 1st branch on left.
Fluorescent green accro I got from switzerland not looking as colorful as it did: