Hi,

Sorry if I've missed this somewhere, We have a fluval 206. - It had one water polisher pad in there.

Do we only use one of these at a time, or 3? We've noticed they don't seem to last long.
Thanks.

I would use one. They do clog quickly. I actually don't use the manufacturer's polishing pads in any of my filters; I use generic filter foam, sold by the metre, and cut it to fit. It's just as good and an awful lot less expensive:

https://www.ebay.co.uk/itm/18-46CM-WID ... m:mG70-Vy_IMOE7P7ESaWzOeA

Thank you . I'll get some of those. Yes we're using 1 , but they seem to wear quite quickly.

Will get some of what you recommended.

xxx

thankyou

I have a 150l tank, with a fluval 206 , that we were recently given. Quick question - what flow should I have it on.

We have 1 gourami, and som tetras of different types, ginger, rummy nosed, neon cardinal, and 2 penguin.
And we will have 6 mollies, but at the moment have about 36 fry in a breeding box.

We have the flow on full, and the mollies and occasionally tetras like swimming in the flow, what is it supposed to be on.

likewise, we have two aereators, / bubbly things, /airstones - what speed should we have them on ?

thank you all so much for your help with these questions.

rosey xx

Full flow is best unless any fish struggle with it (some species don't like flow). As yours seem happy with it, leave it as it is. As far as the bubbles go, just have it set to what gives a pleasing effect as, as long as there's disturbance at the water surface (just rippling really), there will be plenty of oxygen dissolved in the water.

great thank you

Newly back to fishkeeping.

The last tank I set up had a reverse flow undergravel filter - which was seen as sophisticated then!
Now, I've got a 40 gallon (36x18x18) with an intank corner filter using a "cotton" mat and bio balls.

Question about the bio balls - I know not to clean them - unless something goes drastically wrong - but, during a water change, should I stir them so the wet become dry and vice versa, or leave them as they are?

Thanks

Leave them be - disturbing them (particularly letting wet ones dry out) will upset your beneficial bacteria.

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Thanks, I did ask in the shop, but I'm living in Thailand now, didn't have my organic translator with me (wife) and the shopkeeper, who appears very knowledgeable, has almost no English. So it was sign language and "point 'n grunt".