Shimmy - A stress-related symptom in which a fish remains in one position while wagging it's body from side to side. Common among Livebearers, especially Mollies, when water conditions are not within the parameters for the fish's needs.
Look for any signs of disease, such as ich, rubbing against rocks, shimmying, fungus. Does the store offer a guarantee on livestock? Ask the store personnel to feed the fish. The fish should eat eagerly.
SYMPTOMS Fishes (mostly livebearers and particularly Mollies) swim with curious shimmying action of body. Later, if untreated, fish becomes unable to swim and sit on the gravel listlessly shimmying.
TREATMENT Remove fish. Increase temp.
The male will swim around the female spreading his fins and shimmying in place.
Are some (or all) the fish hanging in place but look like they are swimming (shimmying )? Do the fish look like the pictures you've seen? Or are their bellies sunken? Are their fins ragged and uneven? Are their colors bright or washed out?
When the fish are ready to breed, you'll notice the male chase the female and do a mating dance, which consists of shimmying in front of the female. The female will drop eggs, and then proceed to pick them up in her mouth.
The dominant male of the group will court a female and they will shimmy and circle one another. The female takes fertilized eggs into her mouth. She will carry them in her mouth, and when release will be healthy, large fry ready to feed.
You will soon notice him ‘shimmying'. This is a common characteristic practiced by most male cichlids to attract a mate. This can go on for several hours, even days before the female feels comfortable with the male. When she has accepted him.
Fish stay in one place buy wiggle, wag, or shimmy.
Livebearer Disease or Molly Disease
Water lacks electrolytes needed for normal metabolism.
Females will lead males to planted areas and a "shimmy" between the two sexes will result in egg fertilisation over greenery. Egg hatching times are variable from a few days to over a week.
The signs of the syndrome are rapid gilling, rapid loss of body mass (probably due to loss of water from body tissues), heading all in the same direction toward incoming water flow, and a noticeable shimmy in the swimming motion.
Visible Symptoms: Off-white spots or marks around the fins, body and mouth of the fish, white cotton like fungus like puffs around the mouth region, red ulcers on the fishes body, frayed fins, "shimmy" instead of swim constantly, thin appearance, ...
When any female ventures near the dominant males he races towards her and flares his fins, turning his body sideways and shimmying to get her attention. If she doesn't respond he chases her away and waits for the next female.
The spawning tank should have a substrate of marbles, java moss, or a mesh where eggs can settle out of the reach of their omnivorous parents. Fine-leaved plants will work well for barbs and tetras that tend to shimmy and scatter their eggs and milt ...
months striking colors; generally the normal-sized varieties are bright colors, primarily blue and yellow, while Jumbo varieties are pastels, lavender and yellow, often with black. Females stay relatively drab. Males may begin to "shake" and shimmy ...
(although sometimes it is a "caged animal" behavior, much like a tiger at the zoo) Take special note of things such as rapid ventilation, surface breathing, scraping against objects, or shimmying. Cock-eyed swimming is also an indicator.
on pond fish, remove them from the affected fish with tweezers and swab the area with mercurochrome to prevent infection.
Velvet
Fish look like they have been finely dusted with flecks of gold. Fins may be clamped and the fish may shimmy.
 See also: Water, Fish, Color, Aquarium, Species
  
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