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So I was thinking lately to make a new fresh tank, a 5 gallon cause their so easy to move around and could be more handful. Last time I went to the local store I saw a very gorgeous Betta and I felt in love immediately with these fish now, so I was thinking in buying in the future a 5 gallon tank to put my Betta in. Nevertheless, I also thought that putting just a lone Betta in there would be boring, so I was thinking in adding some Cardinal tetras in there, but I fear the inhabitants won't have enough space to live properly, shall I think to keep one of the 2 species or both could get in there with no problem? Or maybe do you have some fish suggestions? 
