Damsels

Damsel fish are one of the hardiest and easiest to keep of all marine fish. They are so durable that people used to use them to cycle new tanks because they could handle the toxic ammonia better then any other fish (I do not recommend or promote using any live animals as a way to start a cycle in your tank. Doing this is very hard on the animals and can cause death).

Use caution however because the damsel fish has some pretty violent members in its family. To play it safe you may want to stick with the yellow tail blue damsel. They are hardy, colorful and only mildly aggressive. Stay away from the Domino, three striped and the blue devil damsel. All of these will get very aggressive and may kill other tank mates. For this reason you should stick with only a few kinds. These would be the yellow tail blue damsel or the chromis species which should be kept in schools. Both these species are peaceful and very active additions to the aquarium, but as a precaution add them last to avoid any aggression.

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