GC might eat snails, but only if they are on the plants that they are eating. RES will specifically target snails, while BG will not. RES have pharyngeal teeth that are made to crush snails.

The stuff that you are seeing is probably filamentous algae - it starts by growing on the bottom, and then eventually will float on the surface. FA isn't high on the list of things that GC like to eat.

The pallets will help the FHM population, but usually a BOW that has predators in it won't be able to sustain a FHM population - they move too slow, and are easy targets. They are great for getting a new BOW established (building a forage base).


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