Which tang is harder to keep?

[sohalfr]

Yes they are in my tank now: PBT has been there for 8 years, the achilles for 7 years.

And they getting along with a purple tang that has been there for 11,5 years now.

 

[cervidaejager]

Sounds like you're doing something right. What size of tank do you have?

 

[sohalfr]

As I wrote above, too small, only 145 gallons.

 

[cervidaejager]

I missed that, sorry.