You saved me, yet again! Last month I tried this via the manual and assumptions were made. Let’s just say I ended up with waterfront property in my living room. 😂 This time I watched your video, and although it took me awhile as I was VERY careful it all worked out!! You are literally my rockstar Fluval guy. Thanks so very much!

Every month, I revert back to this video as a safety net. It’s helped me from making silly mistakes like dumping the “safe” water and emptying my tank🤦🏻. Anyways, thanks a lot for the tips!

Thanks for setting this video up. I'd just bought an FX4 a few months ago and the water was starting to show signs of murkiness, so I knew it was high time to clean it out. Great step-by-step for beginners.

We got an Fx6 in January and haven’t cleaned it yet 🤭😬 it’s always seemed like a huge task but you made it look easy!

I absolutely love your videos. And they have helped me so much with the fluval filters, I now have 6 tanks, 4 running fluval external filters, just got a fx4 for new main tank 5 weeks ago just away to do my first filter maintenance, it's so much better to actually watch someone do it just to make sure you have things right. The first few I had second hand so no instructions but watched your videos & learned it all. So I'd like to say a massive thank you 🙌🏼

Great video... Inherited a large cichlid tank with an Fx4 with our house purchase. This video was perfect for our first clean out. Cheers

Hey man, just wanna say I know I’m a bit late but I found this video really helpful and I’m glad you made it. Keep up the good work, and hope everything’s going well for you at the moment.

Great video and great tip on refilling the filter so much easier than how I was doing it 😁

I have been doing it all wrong with my fx4 and fx6. I have been lifting and hauling my canisters to my kitchen sink for cleaning and then filling it back up and hauling it back to put back under my tank. I've been killing myself. THANK YOU for this awesome video!

i've left my FX6 about 3-4 months without cleaning before, was not a good time for me cleaning that out after, good advice on monthly cleans 👍

I love my FX4 and my vacuum I got free with the purchase.. it's amazing!! Excellent product!

good vid. I'm considering an fx4 for my next upgrade. i have to say though bruv, I'm an electrician and you really need to sort the plug socket out. if thats the only place to house your fx4, then consider swapping the standard socket for an IP rated one (an outdoor one with waterproof cover). if something goes wrong down there, it could be fatal, for you and the fish. I'm not having a moan bruv. just friendly advice.

Excellent video

Just remember that the media has to sit in aquarium water after you rinse. Don't let it dry out! Keep it wet and return it back to filter in a timely manner....

Yo this video helps me every time!!

Thank you

This is my go to video everytime I clean my filter or prime it. Excellent video thanks for sharing 👍

well that was fun, my output fell off and soaked me with water, and sludge. I learned my lesson, but very good video, the rest was smooth sailing! fish seem happier already!

This is an amazing guide

Can you link me to that hose adapter?

I would get an Oase and be done with it, pre filters are the bomb

Thank you SO much for this video! I got one of these a while ago for really cheap (only slightly used from someone on craigslist) and I know maintenance time is coming up. Was super intimidated as it's much bigger than any filter I've used before, but this video eased that stress and was very informative! Hope all is well with you!

Thank you for this video! Do u have a video for cleaning the impeller?

Very down to earth and practical video. Thankyou!

life saver

Helped a lot man. Thank you.

Its really ok to rinse those first foam pad filters in tap water... You have enough ceramic media to preserve a large colony of BB... Plus all the BB in your hoses, tank wall, substrate, and decor... Do your fish a favor and give those pads a good rinse and get some finer filter pads to polish your water a little better also...

what hose adapter did you use ?

ty for the video...hope your lessons helps out for our 75g

Amazing info ty

Wow those sponges were really dirty and that water turn black. Great video thanks for sharing.

With the visible biofilms (or dirt?) built up on your bio-media are you worried that your mech-filtration is not fine enough? I see you have a ton of bio (which is awesome), but I wonder about it getting clogged with detritus.

Good video. Informative and easy to learn from thank you.

I cannot figure out why my filter won't prime I gave tried everything. I have the FX4. Any suggestions? Its only a year old . Thank you in advance!

I’ve followed your video with success in the past but this time when I reconnect a hose, it doesn’t siphon. HELP!

What is the size of the draining hose for fX4 ? The one on the bottom? Please

I was curious about that "junk" your referring to, that comes out of the filter after you turn it back on. Mine does that and throws what I supposed to be, un eating food back into my aquarium. Does your hosing trap food in it? Because its Not in the filter because I just cleaned it! It may be the cause of my Nitrate issue.

I'm wondering if I need to buy new media since my turtles poop a lot. I have an fx4 running and a penn plax 1500 but I always get put new filters on the 1500. It will be my first time changing the fx4.

Please give me a link to you hose lock adaptor.

How often do you throw away the sponge? I want to change my sponge to a coarse and medium for better filtration.

Where does the O ring go

So I have an FX6 and it refuses to restart, we’ve went through two filters and they both died in the same way, we drain it to clean it, clean it, and then when we plug it back in the filter doesn’t turn back on. Any idea why?

cool video. Thanks for posting it.

Thank you for posting. How often do you replace sponge filter media, if ever? Have you considered using several containers of clean tank water? Seems like after that first sponge the water being used to clean was very dirty. Thoughts? Thanks.

Great Vid thanks for the information 👍

Can I use a fx4 on stock pond 500 litres

not being pedantic here but on 306 you turn valves of BEFORE turning power off to maintain water in pipes then when you turn back on it self primes as there is pressure still in pipes

great vid! How long did it take real time?

What do I do if my fx4 is not pumping any water but the impeller is still running? Please help .

Thanks for the video! Is the FX4 too much for a 65 gallon/246 litre with 2" Clown Loaches? Not sure what size tank you have in this video.

Thanks 🍺

lovely severum

When should I clean the motor

great video.can you use this fx4 to drain water out of tank and fill it back up again?

very helpful

I am setting up my fluval 4x for the first time and watched your set up video-- thx for that! I can't get the 2 main in and out valves to rotate at all--- and they are dry. I am leery of setting it all up, putting water in and a mnth later not being able to rotate the valves when filled with water. Any tips or suggs?

AHHHHH SO MUCH JUNK!!!!

Your demonstration of clean the FX4 was pretty good Until you stated to disconnect the in and out valves. Your camera mess up on ya? I show no demondtration on how to disconnect either one of them. I have just purchased my first FX4 and that was tge one thing I needed to see. Cheerio

Do you know if the lid off a fx6 would fit a fx5?

cool video.

Can anyone help me out? My output flow isn’t as strong as when I bought it. I’ve cleaning everything from the canister and both tubes.

What size tubing is needed to drain the FX4 filter? I lost my tubing that came with it.

I have one it don't say in manual how often you should change out media balls in filter someone help me out?

You need a fine pad to remove the fine muck before it hits your bio media!

maybe you could settle an argument,will bacteria in a tropical fresh water setup survive if put into a saltwater setup, cheers dude.

can i use my pressure washer?

Why why why has nobody I have found yet SHOWN how to remove the Hose VALVES from the lid?? You need a crowbar to get those off. WHY?? Good video, except for the fact you skipped right over that. NOBODY is showing that part. humpf.

No way this in only one month!?!

never use tap water!!!

Water you plants with that filter cleaning water. Thank me later

why is your bio media getting so dirty? this shouldn't happen! thats the whole idea of pre filters as it stops the bio media becoming clogged.

dam bro...black 🤔

I wouldn't use tap water to clean the bucket; just pour some of the dirty aquarium water into it, swirl it around and dump it. No need for it to be super clean. Also, you're killing off a ton of your beneficial bacteria by leaving your sponges and biomedia exposed to the air for so long. Probably it's not killing all your beneficial bacteria, but you're not doing them any favors either.