Hi all, Well it's been a while since I last visited, it's been a very busy 6wks. Anyway, I'm experiencing a small algae problem (green beard?) and started doing some research, and of late my Rotalas are losing their red colouring. Current Parameters as per my profile, with the addition that Phosphate is >10 (well off the scale). Light hours = 10hrs continuous per day (on timer) Temp is being reduced back down to 27C (80F), I had it higher trying to deal with ICH which resulted in the passing of my Blue Ram :'( LFS suggested that the loss of colour in my Rotala is probably a CO2 deficiency, and that low CO2 + high phosphates + good lighting = good algae conditions. According to this , I probably do have a CO2 deficiency, and am now looking into a CO2 injection kit. I've just found a relatively cheap that would be suitable for my tank, and wondering if anyone has any thoughts? I'm working on regular WC to reduce phosphates, and haven't tested tap water yet, but will test tonight, and may end up resorting to a phosphate remover (but can't fit it in my classic filter) My questions: What do people think about the CO2 kit? Is it overkill (I would like to add more plants to the tank) Has the LFS given me a load of ? (I generally trust the guy) Anything else I should be doing? note: I have Seachem Flourish tabs in the gravel, dose with Flourish liquid once a week, and dose with Excel every other day.