I've had dreams where the front of a tank was permeable, so you could reach your hand in. Usually my dreams will focus around a theme of "omg... I forgot about this tank, and this one, and that one..." followed by sheer panic over what to do and what a horrible fish keeper I must be.
Some dream locations were:
A pet shop, but one with only fish. *ok... not so bad*
Aquariums built into a mailbox area by the road *no more pizza before bed*
A mall filled with aquariums, finding one weird creature after another, the likes of which I've never seen anywhere, fiction or non-fiction, and of course, totally forgotten about by me, so much so I could not believe anything would even be alive in those conditions. It was my job to oversee them. *probably need less caffeine*
A house with different rooms, filled with room-sized aquariums in various stages of disrepair (of course), and weird creatures all over the place. Yes, I had completely forgotten about them
*less caffeine AND possibly adjust meds for anxiety, maybe consider giving up aquarium keeping lol*