How have I never seen this in my tank

[kendraLaRocca]

First, how have I NEVER SEEN this, and second...what is it? ‍

 

[Cell]

Leopard polyclad flatworm. Remove and destroy. Snail eater.

 

[Tonycass12]

Pericelis tectivorum, the GIANT Predatory Flatworm | Reef Builders | The Reef and Saltwater Aquarium Blog

Pericelis tectivorum is the name that was bestowed to a rare species of large flatworm that is occasionally encountered in reef aquaria and can really shock reefers who don’t know what to make of it.

reefbuilders.com

I have them in my system and pluck them out when I find them. They eat snails

 

[kjkszpj9]

First, how have I NEVER SEEN this, and second...what is it? ‍

that looks like satan himself showed up.

 

[kendraLaRocca]

Leopard polyclad flatworm. Remove and destroy. Snail eater.

That's it! Great! Haven't seen it since...I'll have to set a trap