Originally Posted by FishFrik
The one that you all saw is in a 10G tank. Total cost of that tank was $75, including filtration, LR
, the shrimp, etc.
Well, the shrimp in that video is a peacock mantis and no disrespect to your friend, but it really should be in a bigger tank than a 10 gallon. They average around 6" and max out around 8". I've got a 5 1/2 incher in a 20 gallon acrylic and after seeing him wonder around and digging up his burrow, I can't imagine him in anything smaller.
10 gallon tanks also have pretty thin glass. This guy would have no problem cracking a 10 gallon glass tank with his fully grown smashers.
When it comes to mantis tanks, you can skimp on a lot of things because they are so hardy. Mine is in a tank without filtration. It's so easy to do a water change on a 20 gallon tank. I've got a powerhead and a bunch of live rock and he's doing fine . . . but, I wouldn't keep a peacock in anything smaller than a 20 gallon acrylic tank, unless he's tiny and you expect to upgrade.
It's my favorite fish (well, aquatic pet) that I've ever owned. The price of a 20 g acrylic is well worth it. I watch him more than anything in my 110g show tank.
Check out the mantis forum on RC for info on smaller species.