What are these guys

[Drpepper507]

Ik they’re a type of slug and not good but what’s best way on removal since they release stuff into water when harmed?

 

[Crabs McJones]

Red Planaria Flatworms, don't eat anything, but can choke out coral and they cover everything.
Can nuke a tank. Best bet would be to siphon out as many as possible during water changes, and then look into either a natural predator such as a wrasse, or flatworm exit. However when using flatworm exit you must take extreme precaution. When these guys die they release a toxin. So you want to siphon out as many as you can, run the treatment, with carbon, and then do a series of water changes.

 

[reef_daddy]

Agreed 100%. I used flatworm exit and they straight up just die. But be ready to do a water change right after and run carbon.

 

[Drpepper507]

Red Planaria Flatworms, don't eat anything, but can choke out coral and they cover everything.
Can nuke a tank. Best bet would be to siphon out as many as possible during water changes, and then look into either a natural predator such as a wrasse, or flatworm exit. However when using flatworm exit you must take extreme precaution. When these guys die they release a toxin. So you want to siphon out as many as you can, run the treatment, with carbon, and then do a series of water changes.

Red Planaria Flatworms, don't eat anything, but can choke out coral and they cover everything.
Can nuke a tank. Best bet would be to siphon out as many as possible during water changes, and then look into either a natural predator such as a wrasse, or flatworm exit. However when using flatworm exit you must take extreme precaution. When these guys die they release a toxin. So you want to siphon out as many as you can, run the treatment, with carbon, and then do a series of water changes.

Okay I have a mandarin goby in the tank because I was originally told they would help, but I wrasse would 100% eat and take care of the issue?

 

[Drpepper507]

Agreed 100%. I used flatworm exit and they straight up just die. But be ready to do a water change right after and run carbon.

is flatworm exit reef safe?

 

[reef_daddy]

Yes, it’s reef safe. Check this article

How to eliminate Flatworms (Red Planaria) | Melev's Reef

Small reddish-rust colored creatures may already be in your tank. Or you may buy a coral and they'll appear as hitchhikers later. They may appear on the glass/acrylic, on the substrate, or on live rock. Due to their extremely thin bodies, they are called flatworms correctly. They appear almost...

www.melevsreef.com

 

[Crabs McJones]

Okay I have a mandarin goby in the tank because I was originally told they would help, but I wrasse would 100% eat and take care of the issue?

Unfortunately that is not something that can be guaranteed it's hit-or-miss