Never heard of an infected nem. What is cipro and what does it do?
Really? Sea anemones are very prone to infection the most common cause of death in sea anemones is bacterial infection some species are more prone to it that others. The main reason the anemone gets an infection is from being stressed and just like all other animals when something is stressed its immune system become week and that makes very hard for the animal to fight an infection. Ciprofloxacin is a broad spectrum antibiotic used in humans and now animals it's been known to be effective in killing the common bacteria that are caused by some bacteria found in salt water and has been found affective in also treating sea anemones and fish as well it's not that common for bubble tips to get infections but it's not super uncommon I've had to treat a few for this reason I've been studying the effects of the cipro on almost every species of nem I can find that may be sick and the recovery rate is almost 100% it may be too late for you by the time you get the ciprofloxacin the nem might be too far gone I would separate it from the tank and give it daily water changes with water from the display but I would get it out of the tank with the other nems as if one becomes stressed it may be at risk of infection also.