10 gallon would be great for 2 or 3 Dwarf Puffers...they are the coolest little fish...I have a male and a female in my 55 gallon......im not sure if those are the same as bumble bee puffers but i think thay are. Only thing is if you get puffers...youre not going to be able to get bottom feeders like cories....I tried it and the puffers shredded my cories up....got to be careful what you put in there with them....shrimp are always good to have around...they will to some cleanup work for you and stir up the sand a bit as well.