Selling various odds and ends, generally better for FW than my reef tank, here.
NIB Marlineland 360 Canister FIlter, $60. ($100 at Chewy and even more at the various PetPlaces). I've opened it, but not set it up, because I think it's too big for my intended use. :(.
Eheim quick vac gravel vacuum, $20. Didn't work for my purposes. :(.
Pickup in Ballston