So I got a deal today at work on a 50 gallon tank only got $25. Now I just gotta build a stand for it and all that. Its gonna br a down the road project. My 35 gallon is finally established too.LOL. I'm wanting to give my 35 to my gf for her African clawed frog FW. And I want to move my stuff to the 50 gallon. Can I use the same sand plus some new? Also I have an aquac remora HOB Skimmer. Will this be good enough for the 50 gallon? Any input I'd appreciated. Here's pics of when I dug it out of the shed and once I cleaned it up.