Thanks, might have to look for a local equivalent, would be cheaper than water conditioner in the long run I'd imagine.T1KARMANN;3948017; said:HMA looks like a RO unit but no waste water it takes out the same as tap water conditioner
http://collinswaterproducts.co.uk/p...d=183&osCsid=4f70e74ca0bd30b35ceeecae7d0f8c1b
Any particular reason for running UV on the tank? what sort of strength, like for killing green algae or strong enough to kill parasites? I guess its good preventitive medicine if you're keeping sensitive fish, but with the cost of the bulbs (here anyway, not sure about in the UK) it must be expensive!!