Trusting my LFS on water testing. Said everything was fine for a year, each week I went in. Still, after 12 months and 440watts (VHO) I had zero coraline algae in my 60 gallon tank.
LFS #2 tested my water and voila- take a wild guess what was wrong...
Ammonia/NItrite/Nitrate = 0
PH 8.1
Phosphate = 0
calcium = 250!?!?!?!?
Alkalinity = 16.1
I am now adding calcium (liquid calcite) as well as Kalkwasser, and have already seen the coraline algae and soft corals perking up. So long for "free water tests!!".