The absolute most powerfull sea dwelling animals, can one shot megs and destroy entire packs of piranhas. To tame, you will need at the VERY LEAST a level 200 quetz with loads and loads of points on weight, a quetz platform saddle, at least 45 cannons and a minimum of 300 cannon balls. Due to its long ranged tsunami attack, you will have to fire your cannons from very far away, make sure you never lose sight of the Coelacanth. The knock out part usually takes about 2-3 hours, the taming will take around 12-13. You will have to feed the coelacanth tames, 1 tamed giga sacrifice will increase its taming meter by 0.1%, and you will have to wait 10 minutes for the next sacrifice to come. Do this over and over and over and you have yourself a tame Coelacanth.
So how to really tame it get a fish basket then find one you like then put the fishing basket in front of it then when it gets close press capture fish don't know why people keep lieing about how to tame it.
Heres a funny story. I had a pet fish named BOWSER we went everywhere together. By the water of course. But one day I found a dilo and he destroyed BOWSER. So I shot him with my shotgun and declared war on silos. RIP BOWSER😭
Coelacanth the water type pokemon, known for it's small size and outstanding power this pokemon can destroy any creature in its path by launching like a torpedo and exploding on contact, considered to be a WMD by the Canadian and US military