Sorry for not being clear, I just use a dispenser from the Sea Chem stuff, a syringe from the drug stor will work as well. I've not seen any thing else bothered by the vinegar, lots of people use Kalk paste with out any trouble too. I just find the vinegar is easy and quick. Just make sure you are as close to the aiptasia as you can get, if it shrinks down into a hole and you can see the hole you can still squirt it but you'll definately need to follow up the next day. Best if you can get a tiny needle and put it right into the pest. Some people say you have to remove the dead aiptasia after you kill it, I never did.
Doug
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