<P> Rainbow sharks are tank - bottom and aquarium - surface cleaners . Being bottom - and mid-level dwellers, they consume leftover fish food, but also eat the algae growing off surfaces . They are known to be peaceful with their own kind in the wild, but have been known to be aggressive with one another if kept together in a tank . Threat displays and fighting are likely to occur . This fighting behavior involves head - and - tail butting, and also biting. . A large rainbow shark will continuously chase a smaller one until the smaller one dies, or chase other fish out of its territory, especially in confined environments like aquaria . It may also increase the risk of the fish jumping out of its tank . This makes breeding difficult . Provision of hiding places and hollowed decors such as plants or artificial cave - like and tunnel - like aquatic ornaments minimize this typical behavior . Due to this behavioral characteristic among its own kind, rainbow sharks are not recommendable to the new aquarist . Keeping them with relatives, such as red - tailed sharks, bala sharks and black sharks should be avoided, as they will chase and attack them as well . </P> <P> An adult rainbow shark thrives in a minimum of 30 gallons of water, with an aquarium length of 48 inches, at the neutral pH range (6.0 to 8.0 pH), with temperatures between 24 and 27 ° C (75 and 81 ° F), and water hardness maintained at 5 to 11 dH . They must have this much space, as they frequently swim around quickly and will terrorize other fish in any tank under this size . </P> <P> Rainbow sharks are compatible with barbs and rainbowfish, which are upper - and middle - tank dwellers . They can also live with danios, loaches, plecos, rasboras, and gouramis . They are not compatible with smaller, more timid fish in the tank, as the sharks may terrorize them by chasing them from their territory . </P> <P> Rainbow sharks are not picky herbivorous and omnivorous eaters, but are primarily consumers of algae in the form of tablets, wafers and flakes . They also eat live foods, such as insect larvae, tubifex worms, periphyton, crustaceans, phytoplankton, zooplankton and aquatic insects . Diet also include lettuce and spinach . They will also eat frozen bloodworms and brine shrimp . </P>

What fish can you put with rainbow sharks
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