Thank you all
Sometimes I am very pleased with myself - I write rather good posts (If I say it by myself at least

). I look at my aquarium - it has never looks as healthy as it does now. Everything working.
But I have a trick to make a very fast return to the surface of the earth - the free fall trick I normally name it. I pick up my tools for measurement of alk, Ca PO4 and NO3. The result normally wake me up from the dreams - this time was no exception. Ca 470, KH 5.8, PO4 0.18 and NO3 16. the KH is most of concern. But it looks very well - some of the LPS that has been living but nearly not more than that suddenly looks very healthy. My gut says (at least the part I still have) - do not worry. Just correct the pumps and wait to see what´s happens.
The growth of my clams has been unimaginable. I bought the first 11 month ago - size 4-7 cm. Soon after I bought another one - same size.
At that time - both fit in between the rockwork and the side glass of the aquarium. clam 1 to the right - clam 2 to the left
Today - clam 2 in the same space - compare with the dead snails
This week I got a forth deresa clam - size 4 - 6 cm. Here it is beside the number 1 clam
Something has been done right the last year at least. Interesting is the Euphyllia to the left - it has not grown at all - its the same size as 1.5 years ago.
Sincerely Lasse