"AZOO Mignon Filter 60 is one of the most popular filter media on the market. It comes in clear gray housing and filters 60 liter per minute."The website looks right to me. 60liters per hour ~ 15 gph. I would personally want more than that on a 9 gallon tank.
what is the maximum size tank for the 2213?That's the same filter as the Red Sea Nano filter. I wouldn't use it on anything over 4 gallons, personally. It's great for small tanks though. I really don't like to use HOB filters, so I can't recommend any for you but if you wanna go the canister route I'm sure a 2213 set to full throttle would be good for a 9g! And I've seen them all over the SnS lately for pretty cheap. Either way you'll have to cover the intake with something so the baby shrimp especially don't get sucked into the filter.