TAMING DOES NOT WORK. These creatures are non-tamable and if you look at the more section here on dododex it says it isn't tamable. Those people who are saying they are tameable are wrong. Up this so newbies and seasoned players alike don't waste time on false rumors.

You will have to lure it in a small room around said room put SHINEHORNS around it light them as much as possible it actually tames it found out myself

Tried this "taming" method on official servers and on singleplayer both. Did not work. Used 12 bulbdogs on one, on the other 11 bulbdogs and 10 shinehorns. I had a trap for the seekers with a 1x1 box border around it, lightpets pressed against the wall. I even threw 50 glowsticks in the box with the seekers. No tame. I demoed the middle walls to see if they were blocking the light, and still no taming. Reckon the comments saying you can are just messing with you to waste your time. Or they are on unofficial/modded servers.

You can only tame it by using the add command

Dossier says they are tamable but that there is no known method of doing so. This makes me curious

This is not a K.O tame neither it is a passive one the only way to tame is by looking at it the pause go to admin command and type ForceTame.

Put some shinehorns or bulbdogs in a room and light them up, then the seeker will.be tamed
He's immune to torpor btw

You can ride it but it looks like plays as Dino (forcetame)

They are non tameable unless on a modded server even the wiki says so....

This creature is stated to not be tamable but the dossier shows differently