I've looked all over the internet, and cannot find the answer to my question. I am considering getting a halfmoon Betta, and I am wondering if they need any special tank requirements. 5 gallon? 10 gallon? is there any such thing as giving them TOO much space? I know their fins are fragile, and they are not the best swimmers. He will be alone in the tank, unless he gets a snail or something later on. I do 30-50 percent water changes weekly, and he will have a sponge filter and heater, with a mix of natural and silk plants and a hidey hole or two. I already have two veiltail bettas...Angus and Dazzle...they are each in their own 5 gallon with heater, sponge filter, live anacharis, and a few silk plants, as well as a betta log. If anyone has any advice about halfmoons (or any other betta type with specific needs) that would be great. I also bought some 2.5 gallon acrylic drum fish bowls, to give to my sister. She has her bettas in about a gallon of water each,

and I am trying to buy her things so the bettas can have an upgrade. I know the 2.5 gallon drum bowls are not "the ideal standard"....but I assume it will be better than their one gallon containers. Any thoughts on this? Thanks in advance.