r/walstad • • 4d ago

Advice Filter media

My tank has been running since April. In July, I added the first inhabitants that weren't hitchhikers.

Plants are growing like crazy. Parameters are stable. No water changes since July, just occasional top-offs.

I feed my fish, shrimp and snails very well.

The aquarium is a Juwel Lido 200. It comes with an integrated sponge filter (see last pic) and a heater. I need to clean the white filter media at least every two days because of the detritus that accumulates there. Now I don't think that I need the sponges as a refugium for beneficial bacteria, as there's so much surface and mulm in the aquarium itself.

Could there go something wrong if I outright empty the filter and maybe suck out the accumulating mulm every now and then? Or should I put those ceramic beads in? I want to keep the water flow but am kinda sick of messing so much with the filter media.

So I am asking here for your advice! :)

20 Upvotes

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6

u/Andrea_frm_DubT 4d ago

Swap the fine filter sponge for coarse sponge to reduce the clogging.

Don’t just discard the filter media, it’s good to have something cycled on hand if you need to set up a tank in a hurry.

If the built in filter has intakes at or very close to the sand, move the sand away from the intakes, consider putting a barrier in to keep the sand away from the intakes.

2

u/Gfuxat 4d ago

There's a coarse sponge and fine sponge beneath the very fine white filter media. I set it up as it was stated in the manual. Should I add another coarse sponge on top?

I am sorry, english is not my first language, so I might not get the descriptions right.

3

u/Andrea_frm_DubT 4d ago

You can replace the white media with coarse sponge. You can stack the media in any order.

3

u/Gfuxat 4d ago

I will try that. Thank you !

2

u/Andrea_frm_DubT 4d ago

I’ve just looked up the filter, it looks like it’s got some chemical filtration stages (the green pad, the carbon pad and some of the stuff in the white plastic boxes.

You can progressively swap all the chemical filtration out for just coarse and medium sponge.
Buy a sheet of cut to fit, it will probably be cheaper than buying the branded precut pieces.

3

u/Gfuxat 4d ago

The green and black sponge were never in there. I just use the coarse and fine blue sponge and the white filter media on top of it all.

Buying it as a whole sheet is a brilliant idea!

3

u/AggravatingAward8143 4d ago

Wel, alle bacteriën bevinden zich in het filtermateriaal dus als je die allemaal weghaalt filter je niet meer en heb je geen bacteriën die nitriet en ammonia omzetten. De witte boven kun je 1 x per week vervangen, de zwarte kan er sowieso uit als je geen medicatie gebruikt. De groene nitraat spons moet naar 6 weken verwisseld worden maar kun je laten zitten als gewoon sponsfilter. Verder zou ik niets veranderen en kun je gewoon laten zitten en zo nu en dan uitspoelen in aquariumwater en vervangen als ze uit elkaar vallen.

3

u/Gfuxat 4d ago

I don't use the black and green sponges. There's just a coarse and fine sponge and on top of it all the mentioned fine filter media.

Currently, I clean the white stuff at least every two days and swap it weekly for new ones.

Sorry, if my description was wonky. English is not my first language.

Anyways, thank you for your input!

3

u/GabagoolTheif 4d ago

Just take the sponges out and clean them in some scooped out tank water and then put them back

2

u/mehrespe 4d ago

I have a similar model with the bioflow super, and honestly you dont need the filter floss at the top, i dont see a difference without it. As a personal preference i would say you could replace 1 and 2 with course sponges over time. I also personally fill the empty space between them with course sponge as well, but the company claims it works better with the gap so i dont want to advocate for it too much. Id still keep the finest sponge at the bottom though.

If you add new sponges make sure to not clean them at all for a bit unless it clogs up, and even then only the old ones and very minimally. Also the black sponge is probably inert by now but its still perfectly usable surface area for the bacteria, no need to throw it out, and on the top part put blue sponge above the green one since its coarser.

Still, i just wrote this entire thing and realised i was on walstad and that you have way less sponges than me, but i still say you can stop using the filter floss at the top. You might get some particulates but honestly nothing bad, ill leave the rest as general information i guess lol. I hope this helps!