Discussing tank stat priority in FC, confusion.

[HeartStrong]

We`ve recently recruited a tank so we may go Wanderer Palace & Amdapor Keep. We couldn`t get past Tonberry King or Demon Wall, and our tank insisted our dps wasn`t enough. Now they may not be highly geared yet, but they have the best any lower dungeon may offer.

However, our tank has only 3800 HP, give or take, and to me that is awfully low. So I asked him where he put his points into? He said almost all STR, and tells our FC that any good tank will not invest all or hardly any VIT. On Tonberry he told group "3 stack", yet he`d just die nigh-instantly from the dozen adds near the end.

Anyway, to what I understand, you gain enough mitigation from gear and not all bosses can be fully mitigated either.

So what exactly are tanks suppose to invest their 30 points into? Our oldest tank is not 50 yet and he is getting confused with what our recruited one is saying.

EDIT: We managed to defeat Tonberry King, but much of it is from our same DPS being upgraded in gear as well my own and timing my heals with serious accuracy.
He says he used something after "Grudge" to reduce adds damage, which is great except it`s still quite rough. I`ve been relying on my Stoneskin on that fight more as damage prevention after the spike to buffer time for my healing.