I have a 30L tank and one Betta, hoping to get him some friends. I have been told neon tetras would be a good choice but then have also read on here that not so much. Also, opinions about the tank size: 30L / 7.7 gallon, is it big enough for one Betta and soe friends or should I consider somehow dividing it to house two Bettas? Dividing it would be hard for me, this is my first aquarium! I am still learning, reading every day about Bettas and aquarium care, it just gets confusing with all the contradicting information out there!