Thanks for your advise David.

I did shock it with a couple of bags last night after taking my readings.. so I'd imagine that my FC has gone up considerably. I'll check both again when I get off work.

I was curious about my ALK and so I think it tested around 120 or thereabouts. I'm not sure of the CH as I have not yet tested for that.

I'm working until 7PM today and also tomorrow, so I may not be able to do much for now, but after that I'll have a few days to focus all my attention on it. I'm running the pump 24/7 in the mean time.

Thanks again, it's much appreciated.