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The gill covers will open and close the same amount of times that the fish's mouth opens and closes. This happens normally as a part of a fish's respiration.
Mostly smaller fish.They eat smaller fish, and if possible, algae.
Steelhead fish are also known as Rainbow trout; they typically eat just about anything they can get, but specifically like insects, fish eggs, and smaller fish.
Bangus or milk fish is a type of fish so, therefore it is vertebrate
Most Puffer Fish are compatible with fish around the same size of the Puffer Fish. If you have a fish a lot bigger, or smaller than the puffer, it has a lower chance of being "nice" to the other fish.
Cylical
Cylical
yes, bigger fish eats smaller fish
some fish eat smaller fish it dependes on how aggresive the fish are
That's generally what fish do; they eat other fish that are smaller than themselves. Smaller fish are much easier to swallow.
No some fish eat smaller fish which eat even smaller fish
smaller fish, with smaller jaws.
FIrst you press smallest fish then the fish will grow smaller
In general smaller fish have a shorter lifespan.
scales
Clown fish
They are used to supply fish as food to consumers