Trying to get my head together.....
I think that to an extent, I am suffering from the 'new tank syndrome' even though it's been running for about nine months now. I've noticed that I have recently had a growth spurt with the Coraline. Now, Coraline uses up a lot of Mag, so I've had to start dosing Mag above and beyond what the Triton supplies. In the same way, something has been using the Potassium (don't know what though). This has led to the Potassium going down. Looking at my three ICP tests, I can see that this has been a trend. I've never tested for Potassium.
In my humble opinion, because I started off with Dry Rock, the stuff like Coraline had a slow start. For the first months the tank was stable, but now things are starting to take off (Coraline growth etc) and therefore elements are being used up far quicker. I think the tank growth is accelerating, and I need to get off my arse to keep up with it!
So, my plan of action is.....
Perform a couple of 90 litre water changes.
Buy a Potassium test kit.
Test for Potassium.
Increase the Potassium levels, if needed after the water changes.
Increase Mag and Calc levels.
Resume Dosing with Triton, but with higher amounts of the elements.
Any advice would be gratefully received
I refuse to be beaten by a bloody glass tank full of water !