So my roommate picked up this softshell turtle named Dan as an inheritance of sorts. Appears to have an 8"-10" diameter shell (top part, not sure of specific names of body parts yet). Came with everything apparently, including an Odyssea CFS 500. Only thing I'm iffy about is the size of tank as I've never had a turtle as of yet (and roomie is sometimes an airhead), it's only 30 gallon-tall. I have a couple of 40G-breeders I can upgrade with if it would at all be an upgrade; if I need a bigger tank, I'd have to save for it. I'm already looking up diet and such as this was dropped on me so-to-speak and I'm usually the one making sure anything we get is actually cared for. I tried to say no to this addition, but she pays half the bills and was intent on owning Dan for some reason. Typical stuff you guys want to know of the animal for help requests: 1.) Only know it's a softshell, no idea what else so far as species. Wild caught in a river during her friend's camping trip as a juvenile if my info is correct; region is Indiana if that means anything for pinpointing any specific species. 2.) As said before, 30gallon-tall tank, lid, bulb for lighting, those automatic internally-controlled heaters that keep it at 75 degrees x3 for added measure and to prevent overload on one heater, as well as this digital thermo with a submersible probe. 3.) Feeding pellets, small fish (as in guppy size) and ghost shrimp. Avoiding snails though they seem to be fond of them as I read they don't digest the shells and impaction can occur. He already chomped down a couple of fish and a shrimp and had it only set up for about half an hour. 4.) Decorations are light so as to not harm him should he "uproot" something while burrowing, and fake plants for cover while he isn't buried. 5.) Odyssea CFS 500 external canister filter. As I understand via Google this thing is capable of 500 gallons per hour, much more than the whole "3x gal of water used" rule. Though total tank is 30 gallons, I have only 27 gallons in at the moment so the return oxygenates a little better by stirring up bubbles, I heard that is a good tactic for oxygenation. Apparently you can put custom filter media in it, so any advice is much appreciated for maximum results. Fluval v5?? Something about this one is a Fluval equivalent or something. Sorry for sounding like an airhead or a noob, fact is I AM a noob and I need experienced advice or she may not do something right with it. EDIT: I just looked around on Google for pics, and I believe he is a Spiny Softshell. Further edit: Glad I was planning on an Ally Snapper to begin with. Apparently the heat bulb to warm an upper portion of the water also is needed simply for these guys to bask in, and that I had some spare UVB bulbs and fixtures laying around for his basking site. And the underwater ramp I built actually helps as a basking platform after small alterations. Turns out a lot of the same minerals and vitamins are used for them, so I'm glad I had those on hand as I think he hasn't had even the cuttlebone I placed in there yet. Still worried about the tank size. I keep seeing articles saying they grow to the size of their environment, but he looks huge for just a 30 gallon... Not sure if this is normal or what.