i got her about a week ago,shes not looking well, she eats but she stays at the bottom of the tank and the top ocationally swimming, i thought it would be bacterial untill i saw this large red internal gash on her stimach and rib area, could she have eaten something that punctured her stomach causing her to bleed outwards, i see 2 red blotches kinda small but like o <-- that big lightly red, she was NOT like this before