What are the coolest, most exotic things that could be theoretically kept in the home aquarium?

[Sump Crab]

》the mola mola— i could list about 20+ more fish, but this one will always be on my list. i know that there are actually some mola mola (aka ocean sunfish) that are kept in captivity at a few large aquariums. but could you imagine having one as your own? they're massive, but also known to be gentle giants. they look so unique, like a short body whale. lol!

I found one of these that beached itself recently, absolutely giant!

 

[Daniel@R2R]

Super fun thread idea! I would love to keep a leafy sea dragon. Someday... maybe...

 

[FishTruck]

This was one of my all time favorites... cuttlefish army... with instructions.

https://reefkeeping.com/issues/2008-10/feature/index.php

 

[livinlifeinBKK]

Crinoids like the ones I see all the time diving!

 

[i cant think]

Crinoids like the ones I see all the time diving!

You’re telling me that’s not a flower?!

 

[livinlifeinBKK]

You’re telling me that’s not a flower?!

That's a picture from yesterday!

 

[rennjidk]

I found one of these that beached itself recently, absolutely giant!

Grab some friends and ratchet straps, throw it in a redsea reefer, and post every other week asking why your nutrients are high, even though you only have one fish.