Oh boy, dunno if I'd call myself a hoarder just yet (although my parents, floormates, etc. may disagree with me on that).... But here's a picture I just took of the tanks in my dorm.
From left to right:
10 gallon. Currently houses a black orchid SeDT male, usually divided to also house a HMDTPK male that's currently in a hospital tank.
5 gallon. Houses a salamander HM dumbo male.
15 gallon. Houses several guppies/guppy fry, ghost shrimp, and a couple Glowlight Danio that I kinda inherited by accident (trying to find more for a school, but they seem to be rather hard to find).
5 gallon. Houses a red/blue/purple CT(?) female.
2.5 gallon hospital tank. Currently houses the red/blue dragonscale HMDTPK that's normally in the 10 gallon.
1 gallon bubble vase/thing. My work-in-progress NPT that will hopefully eventually house a small colony of red cherry shrimp. It's partially drained at the moment for various reasons.
There's also a 5 gallon Fluval Chi in my closet that I picked up on Black Friday for half off. The HMDTPK may go in there eventually since he seems stressed by being in a divided tank, but we'll see.
EDIT: Oops, forgot to add the tank at my work that isn't technically mine, but may as well be since I kinda took over care of the fish when the previous caretaker was *ahem* freed to pursue other career opperunities.
He started out in this (1 gallon, unheated, spiky plastic plant):
And I moved him to this (5 gallon, heated, filtered, live plants):