I picked up two of these to filter my 210gal natives tank. I bought them in early 2021. Setup was pretty decent, they were not as quiet as I had hoped but they weren't terrible. There is a ton of room in these big canisters for filter media and they move a lot of water.
Cleaning them is not a great process. The quick-disconnect valve block works well. The tops are EXTREMELY difficult to get off. The filter top has two "wings" that you're supposed to lift to help pry the top off and break the seal. However, there is so much flex in the plastic wings that they hit their stops before actually lifting the top enough to get it off. Eventually, this started cracking them. I always end up resorting to prying the top off with a screwdriver to get the filter open.
Over the past two months, one of them has been getting louder and louder. I took it apart to investigate, and the impeller shaft (which is made of ceramic in these models) has worn very badly down one side, causing a lot of rattling and buzzing in operation. After some internet research, it sounds like this problem with the impeller shaft is not uncommon. There are quite a few reviews showing worn or outright broken impeller shafts.
Ok, no problem, things wear out. I can replace the impeller assembly and be good, right? Nope. The impeller for this model has been discontinued and is no longer available, according to Marineland. Despite the fact that they're still producing the filter itself. So, the whole filter is basically junked over the impeller shaft.
The first three years or so of operation were fine (other than the difficulty of the disassembly and cleaning process), but the lack of support makes this a big non-starter for me. I'll be keeping the second one going until it eventually will likely succumb to the same problem. The bad one is getting replaced with an FX4. If the Fluval performs as well and is as quiet or quieter, that will likely be the replacement for the second one as well when the time comes.
Cleaning them is not a great process. The quick-disconnect valve block works well. The tops are EXTREMELY difficult to get off. The filter top has two "wings" that you're supposed to lift to help pry the top off and break the seal. However, there is so much flex in the plastic wings that they hit their stops before actually lifting the top enough to get it off. Eventually, this started cracking them. I always end up resorting to prying the top off with a screwdriver to get the filter open.
Over the past two months, one of them has been getting louder and louder. I took it apart to investigate, and the impeller shaft (which is made of ceramic in these models) has worn very badly down one side, causing a lot of rattling and buzzing in operation. After some internet research, it sounds like this problem with the impeller shaft is not uncommon. There are quite a few reviews showing worn or outright broken impeller shafts.
Ok, no problem, things wear out. I can replace the impeller assembly and be good, right? Nope. The impeller for this model has been discontinued and is no longer available, according to Marineland. Despite the fact that they're still producing the filter itself. So, the whole filter is basically junked over the impeller shaft.
The first three years or so of operation were fine (other than the difficulty of the disassembly and cleaning process), but the lack of support makes this a big non-starter for me. I'll be keeping the second one going until it eventually will likely succumb to the same problem. The bad one is getting replaced with an FX4. If the Fluval performs as well and is as quiet or quieter, that will likely be the replacement for the second one as well when the time comes.