Seio P320 Prop Pump with Magnet Mount, 320 GPH

The pump works quietly and moves a reasonable amount of water I suppose. I have it in a small 10 gallon salt tank used as a quarantine tank. It would take 2 of these pumps to support a 20 gallon properly. I doubt its 320 gph rating. It would mean its turning this little tank over 32 times per hour. I don't think so. It probably is putting out 190 to 200 gph. The water output is okay for my needs in this case though.

However the mounting system leaves something to be desired. Because the heavy power cord exits the rear of the motor housing, it cannot be mounted on the side of the tank if the powerhead is pointed so it blows lengthwise in the tank. It must be mounted on the rear wall of the tank and the powerhead has to be turned 90 deg. Even when you do that if you don't let the power cord go straight back for 6 to 8 inches before turning up and out the top of the tank, the stiffness of the cord overpowers the magnet mount and the powerhead points downward. This causes a sandstorm, and messes up your tank. I realize this is a $15 product, but their entire line of powerheads have this shortcoming. It would not be expensive to redesign the power cord so it wouldn't cause this problem.

The magnetic mount is a vast improvement over a suction cup method of retaining the pump to the wall of the tank. Hydor Korilla uses a magnetic mount that also incorporates a large suction cup. It does cost $25-$30 though. I would think Seio could incorporate a suction cup into the magnetic mount without doubling the cost of the unit.

I know it sounds like I'm knitpicking, but you only want a powerhead for one thing--move water in a controlled manner. Because of the mounting shortcomings, one is limited in the amount of control they have over the water movement direction. It does move water efficiently and quietly. And it is more controllable than most of the powerheads in this price range, but I'll spend the extra $10 to $15 next time, and buy another Hydor Korilla 425.

An excellent pump for the money, the Seio Taam p320 delivers excellent flow over a wide area to keep your fish and or corals happily blowing in the current. At 320 gph flow is non adjustable and the pump is easily diassembled for maintenance and cleaning. Perhaps one of the heaviest power cords on any pump out there, it may be a bit cumbersome and tends to redirect and move the pump until a good bend is achieved where it exits the aquarium. Magnetic mount works well on small aquariums but still seems a bit weak. Overall an excellant choice for the nano reefer wanting good flow on a small tank.

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I got this for my 14g nano cube because it appeared to be small and compact. I like having the magnet on the outside of the glass, it makes it easier to move around. The first day/night everything was cool, the flow was decent and I didnt really hear anything. Day 2 the pump sounded like something had broken, it was making a loud grinding sound and I couldnt get it to stop. Although a nice design and somewhat compact and good for small tanks, I think its made with cheap parts. If you dont mind the loud noise and want to save a few bucks buy it, but youre probably better off getting a korilia.

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Its very small and thats the only good thing about it. Its weeker than whats stated on the box. Stay away!

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This pump failed after about 2 months in a pretty clean aquarium, we were disappointed but bought a bigger one which works better this model provides very mediocre circulation.

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