I couldn't disagree moreCich of it all said:My advice would be to stay away from Magnum canisters. Absolute junk.
thatfishplace.com sells em for 127 + shippingHONDO said:gherlevi, do you know somewhere i can get a 2217 for 120??? i havnt been able to find anything cheaper than 149 (drsfostersmith)
I like the combo and redundancy....however, my AC 70 don't even fit on my 90 due to the width of the trim. I'm thinking they probably wouldn't fit on the 120 either for the same reason. If they do, then great. Might want to try a test fit before you buy any.prov356 said:Single Eheim Classic cannister stuffed with pot scrubbers and a sponge prefilter on the intake so you rarely, if every, have to crack it open. See them here. More than enough biofiltration. You don't need a lot of gph for that.
Then you'd have enough left over to add 2 AC70's. See them here. These would provide mechanical filtration and circulation and even more biofiltration depending on how you add media. See this article for tips on modifying them.
Many possibilities. This is just one.
I don't know of any cannister that I'd recommend as an only filter. Can be done successfully though. I just like the combo solutions better.