Hitchhiker that could wipe out my tank!! ☠

Just when I thought I have seen it all... out pops a hitchhiker that I have never encountered in my reef tank before! This is a Medusa Worm (Loimia medusa), while it is actually a sea cucumber and completely harmless, when stressed it could release a toxin that would absolutely wreck fish's gill in the aquarium (similar to other Sea Cucumbers). After discovering this worm, I have a little suspicion regarding the strange death around my Bangaii Cardinal as well as the Blue Stripe Pipefish, whom have been doing fantastic up to their random death. Regardless, I will try to rehome the Medusa Worm just in case. In this video we also put the red matters on the macro algae tank's sand bed under a microscope to see if they are once again... dinoflagellate. Timestamps: 0:00 Dinoflagellate in the Mangrove Tank? 1:25 Water change time... doing so safely 2:57 Growing Red Mangrove pod 4:07 Nitrate and Phosphate level of the Macro Algae Tank 6:04 Xenia & Leather Corals in the Mangrove Tank 8:17 Medusa Worm in Reef Tank 9:57 Growing Macro Algae 11:27 Red Mangrove tree in reef tank 13:00 Bangaii Cardinal & African Blue Stripe Pipefish 14:03 Dinoflagellate (Dino) under a microscope Items used in this video on Amazon: KiZHXlo Monocular Microscope 40X-1600X Magnification (https://amzn.to/34NV9KC) Persuper Aquarium Gravel Sand Cleaner (https://amzn.to/34KdjwU) — Public Domain Music by various artists from SoundCloud, many thanks! — Instagram: @inappropriatereefer Email: inappropriatereefer@gmail.com