N. rachovii water parameters and compatibility

Hi Killies lovers,

So I’ve been in the hobby for a long time but never kept any killifish, and having seen the species in subject in my lfs I’d really like to give them a go in my recently set up 15gal as in pic with 3 Siamese algae eater in only for now .
Unfortunately I live in an area of hard water GH 19 pH 7-7.5 . Temp is 24C.
Question is, since lfs keeps them in the same water and are bred in captivity, do you think they would be ok ?

Thanks

Yes. The area south of me has harder water, and all the killiekeepers down there are Nothobranchius people. In my softwater area, hardly anyone keeps them.

I got a m+f yesterday, I love them! The male is beautiful, and when light is off those pattens of iridescent blue are even brighter !
I’m giving them dry blood worms and bugs bites, they seem to accept dry food.
Should I get another female?
Other tank mates are neon tetras.