Lemonpeel and Flame Angel

Generally I would say you most likely will have trouble at some time or another if not right off the git go. system is too small for more than one pygmy angel. just my two cents.
You may be able to pull it off in a larger tank possibly over 75 gal maybe but I dont know about smaller, if Im not mistaking I beleive pygmies dont take to well being housed with other pygmies as stated above you may be able to get away with it while there juvenile but later on down the road without adequate space there prolly gonna stay stressed.