Wrasses are a bad move. The only wrasses that fit in this tank size are too small and fragile (Wetmorella & Pseudocheilinops).
I have seen the mention of a Pseudocheilinus hexataenia but then you’re getting into territories of even riskier fish to keep with your current stock. These should be kept for larger tanks with the rock structure & amount to keep these guys from getting overly Aggressive.
Dwarf angels in this tank size will not work. Again, they’re highly active and will stress in a 25G tank. Even if you have a CB already, I wouldn’t risk it. The reason for this is if you tried to add the CBA to the old tank again, depending on what fish you have (Tangs?) then chances are you won’t get the CB into the old tank again and you’ll just stress it out even more.