Tiger Barbs
You absolutely want to keep Tiger Barbs in groups of six or more to prevent them from biting at other fish. For some reason, when there are less than six Tiger Barbs, they end up nipping at other fish, Angels in particular. If the Tiger Barbs have a school of six or more Tiger Barb fish, they tend to behave a little better with the other fish in the tank. Tiger Barbs have wild colors and patterns, but are all the same species. Other variations are called Gold Tiger Barbs and Green Tiger Barbs.
To make a happy home for the Tiger Barbs, the aquarium should hold a minimum of 29 gallons of heated water, at a temperature between 72 and 82 degrees Fahrenheit. Like most other fish, the gravel should be kept at the bottom of the tank at a maximum depth of ¼ inch.
There is no challenge to feeding the Tiger Barbs as you can give them floating flake food or freeze dried bloodworms- both readily available at the pet store. To treat your fish, you can choose to give a few Black Worms and frozen or live brine shrimp every other day or so as long as you know the condition of the worms and shrimp.
Aquariums containing Tiger Barbs can also have the following fish: all types of Danious and Gouramis, a single Rainbow Shark, a single Red Tail Shark, and a single Plecostomus Catfish. You can put in schools of Bala Sharks, Yoyo Loaches or Clown Loaches and still have a compatible living environment for all of your fish. You could add Swordtails, Platies and Mollies (but not Fancy Guppies as they are too small and will get attacked or eaten by aggressive Tiger Barbs).
For some reason, Tiger Barbs do not like Angel Fish. If you put them in a tank together, the Tiger Barbs are likely to bite the fins off the Angel Fish.
The average life span of a Tiger Barb is a few years. They grow to be around 3” in length, although outstanding care of Tiger Barbs can encourage a longer life span and they can get larger in size.