There are many different aquarium animals that will clean algae off the walls of your aquarium. I will name a few: Cories, Plecostomus (AKA, Pleco) and more. There are some algae eaters that are not fish. Mystery snails, freshwater snails, and other water snails eat algae. Ghost shrimp are small and are very easy to take care of. They clean the decorations in your fish tank and eat any uneaten, leftover food.
Other fishes
Scoop all your fishes to another tank or tub of water and clean the fish tank just as you would normally without the fish
You may be referring to a "Cleaner Wrasse"
The Fishes...
yes blue fighter fish eat other fish and bites them slowly untill they die
Other reef fishes.
Will fish. The verb 'fishes' is the third person, singular, present of the verb to fish. He fishes; She fishes; It fishes. Examples of the third person, singular, future tense of the verb: He will fish; She will fish; It will fish.
Fishes
Seaweed and other small fishes.
WHen there is no other fish in the tank
well, they eat other fishes
fish provide food for other animals