I've just read back through this thread and about the only question I haven't answered that I can see is water tests.

Just done a quick test (hopefully will get time to do a full test with my posh test kit over the weekend but takes hours to do ALL of them!) and all parameters are fine. Not the absolute zero I would usually expect but my Charcoal is due to be changed tomorrow.

Any other questions I have missed or you want to ask?

Bis.

(I'm about to try and create a profile of my main tank somewhere on here so people can give me more amazing advice )