The picture alone does not tell how powerful is your canister filter... Need to know how many gallons per hour ? Anyway, it need to be very, very powerful, so it is rather unlikely. But you feed bloodworms... Are they live bloodworms or frozen bloodworms or dried ones? The first two will have quite a lot of liquid blood inside them and when these get sucked in your canister and decompose, it will be quite a "workload" for your filter to handle over time. Just my personal view on this. Other people please comment on this as I would like to know their view on this, too...