Sharp Nosed Puffer compatability

[Chaloupa]

Can you combine 2 or more sharp nosed puffers in one tank?

Tank specs; 50g with overflow and 13 gallon sump, fluval 404, maxijet 1200 for flow, 30lbs live rock, sand, 2 bulb flourescent lights 1 actinic 1 marine, Remora Pro skimmer, T 79, Ammonia 0, Nitrite 0, Nitrate 0, pH 8.3, Alk 9.3

I own Valentini puffer and yellow wrasse in the tank now...any comments or advice on the above question would be great.... thanks in advance for helping out!