Main thing must remember when use canister filter is: how you plan to clean?!?
OMG believe me please plan well how to clean or otherwise, if too hard to clean, you never do job! So add 2 x valves before canister filter, also more 2 x valves after canister filter, so can turn power off, shut all 4 x valves off, then disconnect between valves 1 & 2, also disconnect between valves 3 & 4. Now can take canister filter to backyard to clean while keeping water staying inside water pipes. This way, no spill water all everywhere + when reconnect all pipes, water flows again too easy to start, no need for siphoning water to prime all pipes, etc!
Second thing must remember when use canister filter is: add a prefilter even if just fit piece of foam over the filter pipe inlet, so this way you just take off foam when dirty and wash then replace, no need to turn off power so much to do big filter clean, so good bacteria stay alive + happy doing good job inside canister for much longer time!
Kuji out.