How big a tank does the Carbo Plus "work" with? I have seen ads for it
that say "smaller" tanks, but that's not very enlighening...
Thanks,
Rob

I have had one on a 55gal. for over three years (110w compact
fluorescent). My Amazon Swords are large, healthy and growing.
Also one on a 20gal (32w compact fluorescent) with equal success.

As a previous poster said "Relax and enjoy the results."