Thank you for all information. I was not taking it, just I never saw it before and some of them were huge. On another note, all good in your part of California?@Remi Sea Apples are a level above other filtering cucumbers (e.g., my yellow cuke), which are themselves a level above the sand filtering one with regards to risk of nuking your tank. Sea apples have a bad reputation. I would check with @ISpeakForTheSeas , who I think has a few posts and references on the real risk of sea apples and cukes.