09-10-2012, 10:18 AM
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Having kept cichlid's for a few year's, I would opt for the filter that turned the most water per gallon,per hour.
Is clear to me,,that those suggesting weaker, or slower flow,have not kept these fishes for any length of time .
Advertised flow rates for many/most filter's is at zero head height, and no media.
Add three or four feet of distance up over the tank from below,,and stuff the filter with media of your choice,,and the flow rate will be between 25 and 35 % less than advertised.
The idea,opinion, that slower flow through finer media is more efficient,only work's well for small tropical's, but with medium to large cichlid's, and or heavily stocked tank's, this only result's in fine filter media that get's clogged very quickly,and much waste laying about on the substrate.
Don't spend money underfiltering a tank .Fish may be small as most cichlid's are sold as juveniles..but they grow quickly, and produce considerably more waste than your average tropical's.
More flow in these tank's,means more debri is kept in the water column for mechanical media to grab rather than settling to the substrate where it can help water deteriorate much more quickly than need be.
Take my word for it,,you'll be sorry for not going with the higher GPH filter when keeping cichlid's.
And your fish will thank you.