The secret Fish tanks Behind My walls

"I keep having this dream where I'm opening doors in my house looking for my lost set of house keys, but I keep finding huge, glowing fish tanks built into the walls where the linen closets should be. Some of them are crystal clear, filled with bright neon fish and lush green plants, but others are murky and completely forgotten, full of tiny, dark creatures swimming around in stagnant water. I always get this sudden wave of guilt and panic because I realize I haven't fed any of them in months, even though I didn't even know they were there. I try to pour fish food into the top of a murky tank, but the glass vanishes under my fingers, and I'm suddenly standing in a quiet, underwater tunnel watching giant stingrays float right over my head. I'm just standing there holding a plastic container of fish flakes, feeling totally lost and bewildered by how many secret rooms are hiding behind my bedroom walls."