I got a syrine with Kalk paste. I injected drip a few drip on the aptasia, they ate it and it is the end of that aptasia. make sure you turn the pumps off so you don't blow kalk paste all over the place. Nee to look closely and treat as soon as you see one until they are all gone. A 10 cc syringe (with no rubber) plunger will last for months, use 18 g needle. I got one behind the rock right now that I will turn it over this weekend and treat it.