IMO, I tend to aim for a flow rate of 10x the tank size per hour. The canister does around 6x. If it was me, I would consider adding a powerhead to increase flow and to ensure no deadspots.
What kind should I get? Never used a powerhead
More than 10 years
Google powerhead... and see what brand comes up in your area.. (can't help out much more for brands and whatnot, but can reccomend to try and look into getting something around 300g/h (300g per hour, or at least 250g per hour).