Whats the best filter to buy? Thats like asking what clothes should I wear - and not mention the location!
Some questions: price range? Are you looking for supplemental flow or filtration? What type of filter do you prefer? Do you want to try something new? Is there any fish that may have special requirements - like betta prefer slow moving waters, while some like danios like water movement?
Sage advice, I think we'll go this route, thanks!!I don't know ... for a 29 gallon tank ... I would not add a canister unless you're just really "in" to this hobby and don't mind the cleaning hassle.
When people ask ... "what kind of additional filter should I get?" I usually advise to get an identical filter to the one they have - if they're satisfied and happy with that filter. So if you like the AC 50 ... why not another AC 50? Spare parts and cleaning are the same then for both. You can by whatever filter OTHERS here like ... but you'll have two mismatched filters, which isn't a problem at all except for the fact that having two AC 50's or even an AC 50 and an AC 70 ... is way more simpler than having an AC 50 and a Fluval C3.
The cleaning for two identical filters is the same. Parts are the same. Media is the same ... arranged the same. If you go away on vacation and someone else has to clean your filters - it's way easier to teach them how to clean one filter rather than two different kinds. It's way easier for you to learn everything about one kind of filter than it is two different kinds.
I have six different filters ... THREE HOBS (AC 70's and one AC 110). Three cannisters - two CASCADE and one Eheim. The Eheim was my first purchase ... because it's different from the others - it's a pain and I will likely be swapping it out for another Cascade.