i got this small one from RC and its smaller then a dime its in a 2.5 for now i got it for free it looks like this but tiny http://www.liveaquaria.com/product/prod_Display.cfm?siteid=23&pCatId=1719 what size tank is it going to need and how big is it going to get ty

Well that's a new scientific name for me!!! Octopus assorted, never heard of it LOL... but according to what the web site says it get to 3 feet in the aquarium, so you are going to need a tank of 100gals to as big as you can go... I'd aim for 150 - 200 gals min...

But, there are a lot of species that it could be; from 2" dwarfs to a 36" vulgaris and a lot in between. You wont know for certain unless you get it properly ID'd and even that is really tricky, especially at a small size, but a good place to start is sticking a picture of it here and letting us see :)

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