Yellow boxfish in a reef

[ReeferBill]

Guys,
Lfs has a small yellow boxfish and long horn cowfish. I have kept them before and they see to do well but never had them in a reef. Are they safe with sps? They are very small so hoping they survive. Super cute. I know about toxins but looking for real life experience from anyone. Thanks all.

 

[Reefing Madness]

I never had em bother anything in my tank. They just like puppy dogs.