I have always been a HOB
filter user, was really interested in the old diatom filters but back then could never afford one. A few yrs ago purchased my first canister filter a Rena xp3 which I really like. recently I've been looking at wet dry set ups, and from people I've talked to, they say this is the best filtration system with minimal maintenance. My biggest tank is a 55, this is what I would be using it for. Wondering if this is worth the expense, also I've heard horror stories of flooding with these systems if you lose power, is there any way to avoid this.