Angels - Pygmy:  Notes From Penny:  I have found that we can successfully keep 2 different species of Pygmy Angels in the same tank.  For best chances of success the tank should be at least 6 feet in length & Angels should be of different body types, i.e., Flame Angel (short body - SB) with a Lemonpeel Angel (longer body - LB).  For best results/chances of them accepting one another either introduce them to your tank at the same time or introduce the shorter bodies angels first.  It seems SB angels are more tolerant & less territorial towards other angels.