On 23 Mar 2007 10:26:17 -0700, wrote:

;o) Controlling the CO2 levels,

www.aquaessentials.com sells the ferts above for cheap in the UK.
You might try their web site, TFC, TFR and other UK specific sites
also.

A lot less trolls than this list.

Regards,
Tom Barr

This seems to be a dead link, Tom
Stephen Parry London W2