This is a mini-review of the Maxijet 400 Powerhead. I’ve used this in a couple of tanks over a period of several years, read on to find out what I think..
The Maxijet 400 is the smallest powerhead in the Maxi range. Rated at 400l/h it can move quite a bit of water around in a small tank. I used it in a 2.5 foot marine aquarium to add a flow along the length of the tank to counterbalance two return jets from a sump pump.
The powerhead can be used for several tasks – simple water movement is provided by using the supplied strainer connected to the bottom of the unit, with the (optional) front directional nozzle for directing the flow. As you can see from the photos it gives a full 360 degree rotation along with a wide angle deflector so you can be fairly accurate where you want the flow and how powerful it is. You can also see at the bottom of the nozzle a vent to allow a venturi air pipe (included) to be fitted. Under gravel filters are also supported using a different attachment.
The unit can be fixed to the side of the tank either with just a sucker (not recommended) or by using the adjustable hook and sucker device which keeps it in place very well.
It can be used in salt water or fresh water, some people like to use powerheads for planted tanks.
In use I found the powerhead very reliable and quiet, a slight hum is audible with no other noise in the room but it didn’t cause excessive vibrations. My cleaner shrimp loved sitting in front of it and then jumping off and being swept across the tank.
In all I found it a very useful pump which does exactly what it is designed for – however, I would say that a 2.5 foot tank is the bare minimum size to use with it – anything much smaller and the powerhead starts to look very intrusive. Although it is reasonably small it is quite long (I’ve compared it to a biro in the pictures so you can get an idea of the size). I did try it in a tiny 12inch x 6inch x 18inch tank and although it did fit it seriously reduced the water volume and the flow was far too powerful.
In this photo you can see the box (duh!). Maxijet 400 Powerhead - BoxMaxijet 400 Powerhead – Box
Here we can see the powerhead itself, the strainer (just underneath the attachment point). The nozzle and deflector below that and the hook/sucker assembly to the right. All is made from hard wearing matt black plastic.
The pieces clip and fit together really well and the whole thing definitely feels really well made. Maxijet 400 Powerhead - What's In The BoxMaxijet 400 Powerhead – What’s In The Box
In these two shots you can see the impeller cover and short nozzle. This cover can be rotated right round and has a bevelled ring which holds the position (with a satisfying clicking sound). The notches you can see are to allow the cover to be removed. The impeller can be removed completely for cleaning and fits snuggly inside it’s housing (as seen in next shot). Again the whole thing feels very well made. Maxijet 400 Powerhead - Impeller RemovedMaxijet 400 Powerhead – Impeller Removed
Maxijet 400 Powerhead - Impeller InsertedMaxijet 400 Powerhead – Impeller Inserted
This is a (flipped!) shot showing the specification and branding on the side. Maxijet 400 Powerhead LegendMaxijet 400 Powerhead Legend
This is a shot of the whole thing assembled, I couldn’t get it to stand up so you’ll have to imagine! Maxijet 400 Powerhead Upright ShotMaxijet 400 Powerhead Upright Shot
This is another shot of it assembled but lain down flat. Maxijet 400 Powerhead - AssembledMaxijet 400 Powerhead – Assembled
Finally this is a pair of shots of the powerhead without the nozzle or deflector so you can see the rough size (the pen is 14.6cm total length). Maxijet 400 Powerhead Size ComparisonMaxijet 400 Powerhead Size Comparison
All in all I’d say the Maxijet 400 powerhead is a great product for the right tank. Lower power usage, quiet and powerful it is well worth the price. It operated continuously and reliably for the two years I had it on that tank, and for about 8 months in the smaller one before hand.
I can’t really recommend it is used in anything much smaller than 2ft (and 2ft may be pushing it) due to it’s shape and for anything over 3ft you’ll probably be wanting the more powerful 600, 900 or 1200 models.
Tech Specs Hz Voltage Power Usage (Watts) l/h Head (height) 60 120 5 400 0.73m 50 240 4.5 400 0.61m
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