The infamous Aiptasia Anemone - notice the smaller ones sprouting up on the right side of the rock pictured below.
Aiptasia is a smaller anemone that can get to be about 1 inch (3 cm) in diameter, sometimes larger, and reproduces rapidly in a saltwater aquarium with abundant nutrients. They are sometimes called aptasia, glass anemone, tube anemone and rock anemone and there are several different species. This is one anemone that saltwater hobbyists don't purchase, rather this one comes in on the live rock as a hitchhiker.
It can be difficult to see them when they are small and you obviously wouldn't want to knowingly buy live rock if you saw this pest on it at the store. They can hide inside the small crevices and rock pores only to come out weeks or months later if they are given the right conditions.
Why are these Aiptasia considered a pest?
Well, they are not the most attractive looking specimen, they multiply rapidly and more importantly they can sting other, more desirable corals and other reef tank inhabitants. It's a typical story... You get some new rock and a few weeks go by and you notice a small anemone starting to grow on the rock. How neat, a free anemone! Well, the honeymoon ends a few weeks or months later when you notice that your live rock starts to become overgrown with them, especially if you have a reef tank with expensive corals!
Ways to Control Aiptasia
Controlling them can be a chore. If you try to smash them or cut them they are thought to release pieces of themselves into the water, thereby multiplying even more rapidly. Listed below are some natural and chemical methods for controlling aiptasia:
Close up view of the aiptasia oral disk
Given the various options listed above for controlling or eradicating aiptasia from your tank can take time and there are drawbacks to each method. The favored option for us is to use the peppermint shrimp (Lysmata wurdemanni).
Author : Mike FishLore
I went with the Peppermint Shrimps to take care of the aiptasia that was getting out of hand in my 55 gallon saltwater tank. What started out as one aiptasia quickly become 4 that quickly became at least 50 over a period of many months. I had two percula clownfish that were the mainstays of this tank and woke up one morning to find one dead and an aiptasia attached to it. I promptly went out and purchased three peppermint shrimps... I'd say in about 2 weeks time those shrimps had totally wiped out the aiptasia in the tank and I've not seen a single one pop up since introducing these shrimps to my aquarium. The peppermints do like to hide a lot, so we don't get to see them very often but I sleep soundly knowing that I won't have to contend with this nuisance any longer.
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