Scott wrote:
doesn't it have to get into the tank on plants or from water that
fish come in?

It is everywhere, it has even been found thousands of feet up in the
atmosphere. It is a bacteria, you can dry it out and years later add water
and it will grow. It doesn't need light to live and it can process the
nitrogen in the air to feed. The only way to realy kill it is to use an
anti-bacterial agent.

HTH.


--


Don`t Worry, Be Happy

Sandy
--

E-Mail:-
Website:- http://www.ftscotland.co.uk
Looking for a webhost? Try http://www.1and1.co.uk/?k_id=2966019