Overton has his own strain of LMB called "Camelot Bell," I believe. It's worth asking about them.
Regarding HSB, I don't think they eat more, per say, then LMB.
Adding 5-10 HSB in your 1 acre pond would be a nice benefit with little downside, IMO.
Excerpt from Robert Crais' "The Monkey's Raincoat:" "She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."
