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aquarium fish fin
- Mantle: Large, pigmented fleshy portion of tridacnid clams that is ex.posed to the light by gaping of the shell valves. Also called siphonal tissue. Also, the coral tissue in fleshy polyps (e.g. Catalaphyllia).
- Acclimation - the process in which the water an organism comes in is balanced to the water in the display tank the orgainism will be going into.
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