New from Seattle, Washington

[DFM]

Hello everyone, my name is Derek. I have a bit of a situation on my hands. I know nothing about frogs, how to tell if they are healthy, stressed out, feeding schedule, tank cleaning, ect..... 6 frogs are all of a sudden my responsibility (room mate had to move out, and he just left the frogs and said i dont care about them anymore) I have identified the species. There is one pacific chorus frog, and 5 northern red legged frogs (rana aurora). One of the r. aurora is huge, probably 4-5 inches long with a middle toe easily over an inch in length on his bag leg. He has is own tank that is 12"x12"x30" as shown:

The other 5 frogs are all in the same 18" cube as shown:


The Chorus frog is 1.5-2 inches long, and the small red-legged are all about an inch, maybe a bit longer. I will upload lots of pictures so the experts can tell me what state they are in and if anything needs to be done. my roommate would always talk about forgetting to take care of the frogs, and the water looks kinda dirty, so i am assuming they are currently in sub-optimal conditions. HELP!!!!!!