Pond Life "This inexpensive guide is one of the most useful books I've ever owned and my favorite beginners guide to pond life. I can't even say how many copies I've gone through and given away." - Rhonda Wilson
"Nature Aquarium World 2" The second Nature Aquarium World book from Takashi Amano. Mr. Amano's aquariums and photography make him the most celebrated planted aquarist in the world today.
Christel Kasselmann's "Aquarium Plants" is the most complete encylopedia of aquarium plants to date. A must have book for the aquatic plant enthusiast.
Mollusks are soft bodied animals most of which are enclosed in a hard shell. The exceptions are the marine octopuses, squids and land slugs. The shells are made mostly of lime secreted by the mantle. The mantle is the fleshy tissue that surrounds the animals body.
There are two main classes in fresh water; Gastropoda (snails and limpets) which have a single coiled structure and Bivalvia (clams) which have two hinged valves.