Marineland HOT Magnum Canister Filter - The Planted Tank Forum
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post #1 of 10 (permalink) Old 03-19-2013, 10:53 PM Thread Starter
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Marineland HOT Magnum Canister Filter

Looking into buying one for 46g planted tank with fish. May use as supplemental filtration/water polishing along with Marineland Penguin BIO-wheel 200 power filter or as primary filtration. Anyone using this specific filter? If so, what are your thoughts on it?

Looking for concerns about difficulty of maintenance, cost of operation, efficiency (especially for aquatic plants), noise level, etc.
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post #2 of 10 (permalink) Old 03-19-2013, 11:37 PM
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I used one for awhile that came with a tank that I bought used on CL. Not a fan, personally, for a number of reasons: media choices are limited, at best; the canister doesn't hold much media for it's size; servicing is a pain compared to other canisters; not as easy to restrict the flow or use a spray bar.

I actually worked at, and was eventually a partner in, several LFS back in the day, and used to service customer's tanks as well as the ones in the store. Always hated Magnums, compared to Eheims and Fluvals. Never would've had one on a personal tank if it hadn't been part of the package deal. Replaced long since. (Tank happens to be in daughter's room, so I went with dual AQ50s to make life easy for me, and eliminate the possibility of her disconnecting a hose on a canister and draining the tank! Still prefer canisters overall.)
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post #3 of 10 (permalink) Old 03-19-2013, 11:53 PM
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I have one and use it for polishing the water (usually after a re-scape). Works great for this purpose, but I would not consider using it for a primary biological filter. Numerous better choices out there for that. They are a bit louder than most other filters. No versatility as previous post mentions.
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post #4 of 10 (permalink) Old 03-19-2013, 11:56 PM
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The return isn't very adjustable, a nuisance. There is very little room for media. I use mine in the quarantine tank or temporary shelter tank from my rescaping with a standard prefilter sponge on the intake as media rather than try to use media inside. It has been very reliable, no odd noises, easy to clean out and start up.
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post #5 of 10 (permalink) Old 03-19-2013, 11:57 PM
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I bought one many years ago when it first came out. I wouldn't use it as a primary filter or get the bio wheel attachment. However I can say I still use it, non-stop since I got it, never any issues, same impeller but inside the media canister I use matrix for biological with the foam pad over it as a mechanical filter and works good as an additional fixture. The bio wheel has proven to be kind of crap with study's. If you want to Polish your water a UV and just pillow stuffing in a filter is good enough.

It is quiet for sure, monthly maintenance. When I first got it used the micron filter and would vacuum the tank by shoving the syphon hose up the intake. Worked great like that but clean the micron via bleach water method got annoying. Has strong flow. If you have just a few small fish I think matrix in the media basket would be enough as a primary but if you want some stock I would say no.

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post #6 of 10 (permalink) Old 03-20-2013, 12:00 AM
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Originally Posted by Dx3Bash View Post
I have one and use it for polishing the water (usually after a re-scape). Works great for this purpose, but I would not consider using it for a primary biological filter. Numerous better choices out there for that. They are a bit louder than most other filters. No versatility as previous post mentions.
I, too, have one for polishing. I agree with dx. There are Better picks for filtering then the magnum.
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post #7 of 10 (permalink) Old 03-20-2013, 12:40 AM
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only one downside: the canister should be bigger.
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post #8 of 10 (permalink) Old 03-20-2013, 12:49 AM
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I have one, in use since 2009, now the sole filtration on a 46G.

It's quiet, reliable, and gets the job done. However, I do agree more or less with all the above critiques. It certainly requires cleaning more often than I'd prefer due to the limited media capacity. Nothing so bad that I'm rushing out to replace it, but if it died, I would look around for other options.
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post #9 of 10 (permalink) Old 03-22-2013, 05:46 AM
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The HOT Magnum does have a strong flow, I use an emperor 400 for primary filtration and the magnum runs while vacuuming and in 30 minute increments throughout the day. The Magnum is louder then the emperor and my tank is in my bedroom and neither bother me I like the white noise. As stated above there aren't many options for the media your pretty much stuck with the water polishing micro filter or whatever you can fit into the small media basket. make sure you keep up with all the parts when changing between filters and use the filter sleeve at all times. If the Magnum makes a lot of noise while running check your water level and see that it is over the bend in the elbow for the magnum return.
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post #10 of 10 (permalink) Old 03-24-2013, 02:00 PM
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Use a Fluval 306 canister as my main filter on my 56 gallon tank. Purchased a Hot Magnum for polishing, using the pleated micron cartridge. It works great for this purpose and wouldn't want to be without it. It's noisier then my canister, partly because it hangs out in the open on the tank.
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