Hi guys, just picked up 7 small guys about 1" long. When they are about 1.5 - 2" long, could I add them to my tank with the 15 congo tetras? My congos are around 3-4" long. I have about 5 full grown Rasboras in there as well right now with the congos. Eventually the rasboras are being moved to another tank so it will just be the congos and emperors.