If using a mek find your whale, shoot the whale with a sniper or a longneck to…
If using a mek find your whale, shoot the whale with a sniper or a longneck to get its aggro. Once done get some distance away to allow the whale to come straight toward you. One shot with the mek to its head with the cannon on the meks back will knock any level out. ( note: using a mek will ruin the efficiency of the tame) you will not get max level with a mek. Last night tamed a 130 and it gained 21 levels instead of the normal amount. For perfect tame mount a cannon on a skiff or rig something on the ground to place a cannon and aggro it toward it. They will break your cannon so beware.
More Astrocetus Taming & KO Tips
Use a bloodstalker and a rocket launcher, jump around to its face and shoot it with rockets until it knocks out. Jump off the stalker and land on the whale to quickly feed it.
Tamed a 125 on official using primitive mek with cannon shell. 1st shot 1 bullet from tek rifle to get it to aim straight for me. Hop on mek, activate the cannon and aim straight at the head. 99.9 taming efficiency.
Ignore all these others as I've just done it 5 minutes ago. Used a bloodstalker to get in range 1st. Very easy . Solid headshot will knock even a high level out.
Make a mek > Make the cannon shell launcher > shoot whale with cannon shells in the HEAD ONLY > 1-2 shots will KO it > feed Light Blue Kibble
DONT AND I REPEAT DONT USE THE ROCKET LAUCHER ON THE SKIFF IT WILL DESTROY THE SKIFF AND KILL YOU
Do not use rockets you lose over 50% taming effectiveness. Use a skiff and cannons
The best way is to use the Tek skiff which you unlock after the boss fight(like the saddle) and have cannons mounted on it. Probably easier with multiple people
Don't use mek because the astrocetus takes first the torpor and then the damage. The effectiveness will go down.
We tamed a 130 with mek and Kibble and get a 136 -.-
I think the stronger the weapon the more you loose the effectiveness, so the "best" way is to knock out with rocket launcher.
It's the same effect with rock elementals.
Wildcard should repair that.
I have an ideia, involving rare flower, a rock bridge and 2 behemoth gates, wish me luck
I used a ufo with a canon didn't take long to knock out and was able to do solo
Taming with a mek makes it loose roughly 40% efficiency, if you have got a skiff its better to use that