True - that’s why i only buy terrestrial fish, they are way cheaper and don’t demand as much care as the wet ones.

Edit: i was joking, but mudskippers are even more expensive, around 50 dollars.

That’s why I don’t have a tank.

But it’s not an off comparison, you can get up to 20-30 common variety isopods for $10-15 US. When you’re looking at setting up a stable breeding population for a fairly self-sufficient terrarium, that’s going to get expensive with Rubber Duckies.