On Sun, 18 Jun 2006 19:26:42 +0200, Marco Schwarz wrote:

But I've never seen a 18" WH, too.

If it is crowded it will easily grow up rather than out. I'm wondering if
that is why BB's is so large. Leggy, rather than an 18" clump? ~ jan
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(Do you know where your water quality is?)

Also ponding troll free at:
http://groups.google.com/group/The-Freshwater-Aquarium