Here's my personal 3-step Aiptasia eradication programme:
1) Use a rigid tube and hose (the rigid tube can be the slender pipe in cheapo UG filters that accepts the air-hose) to scrape off and siphon out the little beasts off the glass and rock. It takes practice, teasing them off their anchorage, and siphoning all tissue out is important: the scraps can regenerate! The siphon leads to a funnel lined with floss and with a couple of teaspoons kalk powder in it (calcium hydroxide, or lime), which in turn drains into a small bucket. You have to practice 'pausing the siphon by pinching/bending the hose whenever you're NOT working on a particular anemone, or you drain too much water out. Add small amounts of kalk powder to the funnel as needed, and you will have some kalked saltwater to later filter and (if you have the guts) drip slowly back into the tank.
2) Wait for reinfestation, and repeat the scrape-as-you-siphon. If a pesky reinfestation site is a piece of rock, put it in a bucket of good saltwater with an airstone, and a (borrowed?)
Diadema or other suitable
sea urchin for a couple of weeks.
3) Wait for reinfestation again. The reason I don't like using corallivores like some shrimp or some Chaetodontids (butterfly fishes) is that they often leave a little tissue behind (makes sense not to completely wipe out their food source), and the minute you remove these corallivores, the problem returns. Also, hehe, they tend to have a potential tooth for more valued anemones and corals
If they are multiplying rapidly and you want them out, there are almost as many strategies for controlling or even eliminating them as there are reefers!
Again, try to find out exactly WHAT they are.
horge, dark
