I hate to post this on here, after reading the "stickies" but I was wondering if i could mix guppies with a red tail shark and bala shark with guppies, because i would like to do a fishless cycle in my 10 gal. (my 10 gal only as guppies in it) or, if i could, but all of them in my 10 gal until i could do a fishless cycle on my 30 gal. help!! I wish i new about this "fishless cycle" before I purchased the fish. Does anyone have any suggestions on what I could do???