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Grobbeldopp
3 years ago

Hi.

There are different views and that makes everyone different.

I think you don’t mind if you change half every 1-2 weeks at the beginning of a “normal” aquarium. There’s nothing against it. The opinions go from 20% to almost everything so we take the middle 50%.

Benutzer615
3 years ago

I do this with all my aquaria differently because of fertilizer, size and occupancy. In general, a 30% water change is sufficient all 2 to 4 weeks. (! But regularly!) not even all 2 weeks and once all 3 weeks or so

Nils7364
3 years ago

Depends on the pollution and when you did one last time. Opinions are diverging. I always make a third change of water, sometimes half.

Bananasmothi28
3 years ago
Reply to  Nils7364

With a pelvic size of 96l I would recommend a water change of at least 30% but if the pelvis is very dirty also 40%

Nils7364
3 years ago

You can’t actually make too many changes in water, so that’s perfectly fine.

WienerGaming
3 years ago

You can change 1/3. Don’t forget to suck the bottom trough regularly.

Anonymitron
3 years ago

Leave about three quarters of water