Pimping My Fluval Flex 123 litres With A Oase BioMaster 600 (1 Month Update)

After running my 2nd hand Oase Biomaster 600 in my Fluval Flex 123 litre tank for about a month, I took it out for a cleaning.

The pre-filter was so filthy it took me 4 buckets of aquarium water to rinse the muck off. The filtration trays were relatively clean, hence moving forward, I need only remove the pre-filter section for cleaning and, at the most, rinse the main filtration trays once a year.

The filter is relatively quiet, similar to the noise level of an air pump. No issues if the tank is in your living room. Even better if you have an aquarium cabinet to hide the canister filter in. This video may make it sound louder than it really is as my microphone is very sensitive in picking up noise.

The filter produces water 'trickling' and 'pew pew whooshing' sounds. I realised the trickling sound goes away after the pre-filter has been cleaned.

The 'pew pew whooshing' noises happens occasionally. I read that the sound is heard when the filter discharges built up air in the filters. I personally find the noise amusing as opposed to annoying.

Like what you see? Would appreciate if you could like and subscribe to my channel, Goldfish in a Flex!

Shout out to Jonathan Tok, finally done the video!

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[Jonathantok]

Thank you for the update . Looks like biomaster 600 is doing the job well!

[Jonathantok]

i have followed your advice and finally take the bold step to upgrade the Fluval stock pump. I bought the Eheim 2100 and it worked perfectly. im so glad you made this wonderful suggestion. Thank you friend

[mohamadnoh]

Hi fellow singaporean 👋. I am fairly new to the fish hobby. However, I feel I need to upgrade my tank to the 123l. Currently, I have the Fluval 57l. Kinda want my fishes to have more swimming space and perhaps adding a little more to see more actions going on in the tank. Your video has inspired me to upgrade my tank to the 123l. Just wondering if u have ever considered the Fluval canister filters instead?

[Biggnate]

Can I get the Oase 250 unit for my fluval flex 15 gallon ? Just want to avoid as much water changes as I can' the fish in there are going to be 1 betta fish 8 tetra neons 2 cory catfish 1 snail & 5 ghost shrimp .
Is that OK? I want to do filter changes every 4 to 6 months ' that's why I want more filtration...

[blaketundra]

Do you think the built in filtration would be good enough for 2 goldfish?

[TheWalk]

Was that Biohome Media ? Heard it was no big deal. How did it lower nitrates ?

[xuperdad]

Hi, I have the flex 123l as well, the water seems to be heating up by the stock pump, do you have this problem? Changing to canister filter, will it help lower the water temperature?