Hydor 250 Canister Filter Review and Setup

So today we’re going to be setting up the Hydor 250 to replace my Eheim 2211 classic canister filter. The filter has done an okay job, but in the planted aquarium behind me it’s not been giving me the flow rate I need in order to keep the algae and things off the plants so I’m going to try this new filter. Its supposed to have a higher flow rate and we’ll see how that works out.

Let’s get started by taking a look at the outside of the Hydor box. this is the Hydor Professional 250 aquarium external canister filter with integrated priming system.

The Hydor filter’s priming system should be easier than the suctions tart priming on the Eheim canister filter I’m currently using. I got a mouthful of aquarium water trying that on the first time with the Eheim. The Hydor priming system uses a priming button you push on top of the canister. The quartz bio rings are already included with the Hydor 250 which again is rated for aquariums 40 to 75 gallons. I’m using this on a 29 gallon tank I’m hoping to get extra filtration and flow. I went right for the recommended size spec for the Eheim 2211 and been disappointed so I’m hoping that the over capacity will give me what I want here.

Hydor Professional 250 External Canister Filter, 40-75 gal, 225 GPH

On the other sides of the box we have some pictures and diagrams for visual people. This side of the Hydor box outlines the long-life ceramic shaft the telescopic intake that you can adjust your actual tank height the easy priming and the no water bypass design for the filter media. The side of the box also shows a chart for helping you pick which size of filter model to select based on your aquarium size and gallons or liters. Again, I would have been fine with the Hydor 150 based on this but I went with the Hydor 250, which is rated for 40 to 75 gallons, for the extra filtration and flow.

On this side it has the height or parts diagram. It shows the telescopic intake standoff suction rings to being motor housing and shut-off valves. In here it looks like there are some hoses. It’s like these are shut offs. Appears to be part of the intake tube. Some more parts. The strainer on already looks to be much bigger than what the Eheim had which is good because that used to clog up with the plant material quite often. More tubes and it looks like this is for the output control. I’m going to be using this. This is the spray bar instead of that output and funnel and that should help me with the flow rate throughout the tank. Here we have the suction cups. Pretty pliable so hopefully they should last quite a bit. Taking a closer look at the hoses, they are different sizes for the intake in the output. Getting a tape measure on the hose it looks to be about 60 inches is what’s included.

Now to take out the main unit of the Hydor 250. On the top you can see the push to prime button. There’s a little notice here to make sure to cut your hoses to the correct length. Okay can already tell on the bottom there is some generous vibration dampening so we’ve got some rubber feet here that should help with that. So now let’s see how easy it is to take the top of the filter off the Hydor. Comes with front side and back clips that you have to take off in order to get at the motor, one on the back here and the Hydor motor should just lift up. . . I think. Top of the filter cassettes. Next to the top it looks like it’s the fine media filter for water polishing and then comes the bio rings and then the coarse sponge for getting all the big gunk out, So as I’ve been rinsing out the filter media I’ve noticed that a lot of the ceramic rings have cracked in shipping. The coarse sponge seems very coarse like there’s a lot of room for flow through there. I don’t know if that’s a good or a bad thing I’m not sure how much that’s gonna catch on the first pass and the fine filter was like initially very fluffy but now that I’ve rinsed it it’s compacted quite a bit.

Hydor Professional External Canister Filter Media, 2 pk, Medium, Black Foam Pad, Fits 250/350

Some other thing I’m gonna do is take some of the bio balls from the Eheim filter and put them in the new one just to bring over some of the bacteria now that everything is washed. I’m going to put back the coarse sponge followed by bio media and finally the fine filter pad. So I’m going to be changing out the Eheim 2211 canister filter I have plumbed in line here with the Turbo Twist UV sterilizer and Hydor inline heater this is gonna be quite a job and I hate it very much. Right, so before I take things apart this is what the Eheim looks like at the top of my tank currently and you can judge the current output flow. As you can see it’s more ofa trickle and then we can compare later when I finish plumbing the Hydor 250. I’ve attached the spray bar at this point to the left side on my aquarium.

It’s 30 gallons and I’m using three of the four spray bar links that they’ve included and it reaches nearly all the way across. The suction cups offset from the back glass a lot more than the Eheim filter did whether or not that’s a problem I don’t know. We’ll find out later. Now that the spray bar is in place I’m going to attach the intake, put the strainer cap on and the neat thing here is, that this will telescope to whatever height you need for your aquarium and moves in and out pretty smoothly. So at this point I have everything all plumbed in I have connected the UV sterilizer here on the left. I’ve got my intake and output connected on the hydor 250. I had just enough hose to plumb the outside connections to the UV filter and towards the back here I’ve got my inline heater, also hydor brand, that’s been working pretty good for me in the past. At the top I have my spray bar mounted and on the right side I have my intake and now all I have left to do prime the filter.

This button takes a bit of force to get started but this is much better than the manual suction the Eheim uses or the anemic plunger that my old Fluval canister used. Okay the priming button on the Hydor 250 seems to work pretty good to get the air out of the lines and now I’m going to turn on the canister filter it’s still getting the air out of the lines but I would say that it is much louder than the Eheim until it clears the air out. I don’t know if that is a fair comparison. Let’s take it up top and look at the flow. Looks like I’m getting a lot more flow which was the main thing I wanted. I was having a lot of issues with as you can see. A lot of algae building up even with a UV filter and I had to clean the filter a lot because the media kept clogging on the other one. The other problem I was noticing on the fish tank was a like a slick film like an oily film showing up at the top of the surface. I’m hoping that the extra flow from this should help break that up. I’m still definitely hearing a low rumble that wasn’t there with the Eheim filter but it’s still pretty quiet. Probably with the door closed I won’t hear as much. You can still hear it a little bit. I have a feeling if you added some more padding below the unit that might help with that and now that the air is cleared out of the lines I’m going to turn on the turbo twist UV sterilizer and the inline Hydor heater. Everything looks fine as far as leaks are concerned. The instructions say to check back for leaks in about 24 hours. Sometimes shaking the filters can help relieve stress as well as get rid of air bubbles that might be making noise.

The Hydor 250 has been running now for about a week and I’ve been very happy with it apart from the noise. It’s not that much noisier than the Eheim 2211 it’s just a difference and so I’ve been trying to see if I can fix that. Again it’s not bad but I’ve added some closed cell foam underneath the unit and that’s taken out some of the additional vibration that’s been contributing to the noise. That’s my biggest complaint and that’s not a huge one so overall I’d say the design of the Eheim is a bit more polished but the performance of the Hydor has been better for my fish tank and given that I would recommend the Hydor over the Eheim and I’ve been very happy with the purchase so far well, I hope you found this review and unbox of the Hydor 250 canister filter helpful please let me know by clicking like adding a commentor subscribing thank you