African Snail: Good scavenger—light yellow brown—dark spots.
Australian Snail: Similar to Pond but bright scarlet in color—very active.
Catfish: (Corydoras Paleatus) most popular scavenger. Look for full description on [page 26].
American Salamander: Brown with red and black spots—vest yellow and brown.
Clam or Fresh Water Mussel: Filters all floating matter from water leaving it crystal clear. Must have large tank or pool and several inches of sand in which to work.
Snails will eat eggs of egg-laying fish.
To breed snails—place in separate tank and feed lettuce. Well fed snails lay an abundance of eggs, resembling a gelatin like mass attached to plants and glass. Fish will eat snail eggs. Salt will kill snails—when using salt treatment remove snails.
MOSQUITO FISH: HETERANDRIA FORMOSA
(Southern U. S.)
average size
Color: Numerous black bands adorn gray sides—black horizontal line extends from eye to caudal. Red edged dark spot on dorsal.