I went everywhere & i mean everywhere in my area over the past 24hrs trying to get aiptasia x - no where had it & only one shop knew what i was talking about & said they would have it 'in a few weeks'. So i did some reading & came across a few articles & video of people using lemon juice. Tried it & it seems to have worked - some have shrivelled up & gone black (yes i found several more) & the others after application went back in to were they were hiding & haven't emerged. I am hoping there wont be too many more.
Sarg - yep planning on getting corals but not till a lot later, first want to cycle the tank, then make sure i have a handle on things, then add the horses & make sure i can maintain them. Also have to do some research on what types of things are able to go into a seahorse tank. ;)