Marineland Magnum 350 Dual Purpose Canister Filter

This filter is unbelievable

This filter is unbelievable, I love it. I had one of these “hang on the edge of the tank” type of filters and my water was constantly filthy even with weekly gravel vacuuming and 1/3 water changes. I purchased this water filter and installed the sponge “Rite Size” filter over the polishing filter, it fits perfectly, and it prevents quick clogging of the water polishing filter. I changed...
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This filter is unbelievable, I love it. I had one of these “hang on the edge of the tank” type of filters and my water was constantly filthy even with weekly gravel vacuuming and 1/3 water changes. I purchased this water filter and installed the sponge “Rite Size” filter over the polishing filter, it fits perfectly, and it prevents quick clogging of the water polishing filter. I changed ½ of the water in my tank while vacuuming my gravel. Even after the water change the water was still very cloudy with various debris, but I did not want to do the 100% change. I turned on the filter and “Oh Baby” this thing really moves a lot of water and cleans it fast, after about 3 hours most of the junk was gone. The next day the water was so clean it looks like there is no water at all. I will buy another one of these without thinking if need be. I looked at Rena XP3 and Eheim 2217 both are comparable but I really love this magnum. Make sure to soak the end of the hoses for 20 seconds in very hot water before trying to insert them over the filter and valve attachments it’s much easier that way.

By RobChicago on PETCO - Nov 30, 2009

OK for the price

Read the other reviews and you get a pretty accurate picture of my experience with the Magnum canister filter. It filters well but because it is inexpensive (you get what you pay for) there are issues in operation. Be careful in opening the canister because the media chamber top has no fastener and can pop open, spilling contents. Workmanship and quality varies from unit to unit. Very hard to...
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Read the other reviews and you get a pretty accurate picture of my experience with the Magnum canister filter. It filters well but because it is inexpensive (you get what you pay for) there are issues in operation. Be careful in opening the canister because the media chamber top has no fastener and can pop open, spilling contents. Workmanship and quality varies from unit to unit. Very hard to stop micro-bubbles from being produced. Heavy lube all accessible gaskets, seal (if you can) the outflow joint, burp the unit, and keep the interior clean (there is a false floor that you can remove to discover a plenum where debris can accumulate. Best hang-on does not mean best filter. However, if you are restricted to only a hang-on, I cannot recommend any other filter as being as good or better. (PS - Lose the bio wheels, they are nitrate factories). One other good note - the vacuum attachment allows you to clean without pumping out water; that is actually a unique feature that can be quite nice to have (use your polishing filter when you do this).

By wetDan on PETCO - Feb 24, 2008

magnum 350

Complicated initial set-up. It's late. I'm tired. And I just did an emergency replacement of my old Rema filter with a new Magnum 350 and I can't get this thing to prime! I've checked everything and I can't get water to flow through the hoses. I've turned the valves every which way possible. Nothing!

By mrteacherman on Marine Depot - Jan 20, 2010

Lots of Negatives

To be honest I'm rather confused by many of the other reviews posted here. I can't see much upside to this product, especially for the price. Well here's my take on this product: yes it does filter the water fairly well, but that's about it. Other than cleaning power (which I'll admit is a major factor in choosing a filter), this filter is filled with flaws. I have yet to clean it without...
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To be honest I'm rather confused by many of the other reviews posted here. I can't see much upside to this product, especially for the price. Well here's my take on this product: yes it does filter the water fairly well, but that's about it. Other than cleaning power (which I'll admit is a major factor in choosing a filter), this filter is filled with flaws. I have yet to clean it without spilling tons of water everywhere. At least 8-12 ounces every time i open the canister. And this is with the 'deluxe'-only valves! I honestly can't imagine cleaning or maintaining the filter without these - and they are not provided on the base model. Putting the pieces back into the canister is a joke - more water spills and even when it's together correctly, its very tough to tell you've done it right. Plan on at least 10-15 minutes per filter change/cleaning plus water spillage. Instruction manual is TERRIBLE. 50% words, 50% pictures - adding up 100% confusion while putting together brittle plastic pieces.

By Welchrock on PETCO - Oct 27, 2007

great filter

This is a complete kit. With enough options to satisfy most installations. wonderful sturdy design and easily maintained.

By LLOYD VANCIL on PetStore.com - Jul 10, 2012