@Garf: correct, I use 50w LED + 48 watt T5 ever since..
The salt I used is from Red-Sea.
Just an up-date on the past months:
After a huge plague of aiptasia, which I overcame with the help of a Acreichthys tomentosus, the tank has had a hard time. Also because I was VERY busy privatly (finishing a master), which messed up my steady maintenance routines. No3 started to raise seriously, corraline declined, tank algae started growing and some lifestock has left . After finalazing, I kicked back by 4 to 7 days cleanings for the last 2 months and now finally things are starting to become more stable. Never had any other growth than green on the screen..
The ATS really is fantastic, but low on maintenance (like 2 week routines) really had some bad effects in my case.
Now I again harvast massive amounts of algae, about 1 kilo (expressed) in a week and that you can see in the display of course.
Currently the algae in the tank are declining, but not gone yet.
I still have some red algae growing and green bubble algae, which of course is a bad situation which might be related to the No3 readings. Help on that subject is welcome...
I have in mind to do a WC, to speed up the no3 issue..should I?
The reading on P is <0,02 and the N03 is ~25 (down from skyhigh 100+)
the crazy thing is that even though these no3 readings, the sponges became massive in numbers and size..
For now I will keep up the cleaning routines on 7 days and see if time will solve the last issues. When the tank is back to stable I will expand the life-stock again...for now I enjoy my schrimps, crabs, fishies and some lethers
Thanks for reading and your help!