Following on from Nev's thread about the NP Biopellets, Nev has so far had good success since using them, as in lower test results, and great colouring. I was definitely thinking of trying the NP BioPellets, although after reading through his thread and also researching on the internet, I then found a review for an alternative product, soon to be launched, called Bio Pearls. http://reefbuilders.com/2010/09/03/bio-aquateks-marine-bio-pearls-showcased-dd/ I currently use a Phosban 150 reactor, and also an AquaMedic NR1000 Nitrate Reactor. Both of these products need constant supplies of media / bacterial food etc, and if you add up the cost over a year, it comes to a fair bit of money, for Deniballs and Rowaphos as we all know already. My plans are to still use the Phosban 150 reactor, but now with the Bio Pearls, instead of RowaPhos, to do more or less the same job at a greatly reduced cost compared as to what I would normally spend over a year anyway. I would also save (although insignificant anyway) a small cost of electricity by not using the Nitrate Reactor, and from what I understand, I would need also to stop using my UV unit as well. Although initially, the Bio Pearls are more slightly dearer, from what I have read, they should actually do a better job than the NP BioPellets. As well as my own benefit, and for the sake of the hobby, and in turn giving member's on here a headsup, it has to be well worth a punt. I have spoken to Tony, from Bio Aquatek Limited, who is also a member on here, and I have managed to get some of the Bio Pearls sent for the purpose of this thread ahead of their release on Monday 27th September to the general public. (For the sake of clarity - I did not get these for free). I believe that TMC are the sole distributor of these in the UK and that people should be able to get their LFS to order these direct from TMC as from next week, or direct from the Bio Aquatek Limited website. I also believe the cost to be approx £75 per litre, against the £55 per litre for the NP BioPellets. Nev is going to come around to my house tomorrow, with a sample of the NP BioPellets and we will between us do some photographs and some chemistry tests to give people a clearer image of the differering products and the subsequent results. The fact that Nev has helped me so much since my journey into Marines, it is a complete no brainer, not to liase with him, and to compare notes so to speak. I know in an ideal world, we should both have the same setups to see the true differences etc, but hopefully between mine and Nev's thread, and even Deb&Waynes, we should be able to give members and other reefers a clear list of the pros and cons of both products as well as the overall results over a period of time. The reason that I have gone down this route, is for the potential cost savings for this hobby, as well as running less equipment, meaning that there is less to actually go wrong, and overall equipment costs are then reduced. Based on some quick back of a fag packet calculations, by going down this route, I am now roughly £145.97 (after buying the Pearls) per year better off (This is based on me buying one litre, which should easily last 12 months, if not more). Not a lot but that is approx 30 frags, or 64 pints a year better off. Original Kit and now removed from my setup Maxjet 1200 Pump - £17.52 electrictiy a year based on 24 hours per day usage. Deniballs - 3 packs (Aqua Medic Deniballs 0.8l box) @ £25.49 each - £76.47 per year. Nitrate Reactor / Sp3000 dosing pump electric usage - £20.00 per year. Rowaphos (approx 250ml per month) @ £35.99kg (approx) - £107.97 per year. This also assumes that you already have a suitable reactor, and that you also use the same pump as your skimmer, to feed the reactor.