Whih fish is the better scavenger, red tail shark or rainbow shark?

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sealife

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Which is more the scavenger for food, if either are scavengers...
Searching and eating left over food, possibly algae if possible, etc

Thanks...

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Neither eat algae. They are bottom dwellers that will eat anything they kind find on the floor of the tank. They should be kept singularly in a tank of 30g minimum. They dont belong in community tanks. They can be agressive twoards smaller fish.
 
Both species are highly territorial. The term scavenger refers to an organism that feeds only on leftover food. If you don't have large fish, I would advise getting some shrimp.
 
If you are looking for a fish specifically to scavenge and eat algae, a BN Pleco or other small pleco would be a far wiser decision. My Rainbow scavenges for food at night, but my pleco is doing it ALL THE TIME. My tank is algae free, and he will eat just about anything that makes it to the bottom. You will need driftwood for digestion with any pleco.
 
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