And next good job!
BTW my mermaid, in my game, died yesterday... In time, when she got the mod xD
And Polish translation here:

Thanks again!

Saw your vampire one this morning and I was so pleased you'd done one for the Mermaids. Thank you for sharing these!

This mod looks really interesting! I wanted to try it, since I want to play with this mermaid family I have (grandfather, mother, daughter), so now I have a question. Should those traits automatically be added to existing sims, aka the grandfather should have weak bloodline, mother strong bloodline and daughter ancient bloodline, or do the sims need to be born in game to get it first? Because I have the trait injector mod, but they aren't showing up.

They get added when a Sim is born, sadly. So if your Sims already existed they won't have them.

(If you go to Manage Traits on MCCC's MC CAS, you can cheat them in via adding traits, for the record)

Thank you so much for both this and the vampire one, much appreciated!

Thanks for this and both of your other bloodline mods! It's nice to have these same perks for vampires, mermaids, and aliens that spellcasters also get.

Question: why is City Living listed as a requirement on the mod page?

The Singing skill is tied to City Living for some reason. So to have a boost to singing, even if mermaids sing normally, it needs the skill from City Living.

realllllly wanna download this but i don't have city living... will it still work normal, just without singing skill?? and i already have trait tracker injector

It should work as far as I'm aware, you just won't get the benefit to singing skill. Everything else should work. It's a multiplier so I think it shouldn't come into play, but let me know if you have any issues.

Finally the French translation!

Merci