Purigen or filter floss.

[BigBen]

Lots of questions at the moment as with the house move and filter experiments I feel like I'm relearning a lot of what I knew.

In the new tanks with the HMFs the water isn't running particularly clearly, so I was think of how I can do it. The is no floss in the filters to polish the water but I wasn't sure of how that would be possible. Would a product like Seacham Purigen in a mesh bag, chucked in the chamber do the trick?

[Staffylover]

Hi Ben I can't advise on your filter as I've never used them, recently though I got a new tank set up, I used some soil in bags under the sand for plants this made the water very cloudy, as the FX4 has no fine floss I added an old internal filter in temporary stuffed with floss also added some water clarity stuff that makes particles clump together, after 24hrs it was a lot better, I am hoping this will be a 1 off thing once the water is clear it should stay that way, could you add a square of floss to the top of your filter like the set up would be on a Jewel internal? That always seemed to work well.

[black ghost]

I’ve never used Purigen so I don’t know either. I would just pass it all through a “polishing pad”.

[BigBen]

I'm not sure how well floss would work, and if it would just bung the uplift up a bit. I was thinking a bag of Purigen bunged in the bottom would do the trick, but I can't entirely work out what Purigen does. I asked in the shop earlier but she didn't know what I was talking about.

This is the filters, I don't see how I could get floss in the chamber effectively.

[LookoutTrout]

You could put the floss behind the sponge so water that comes in the top travels through the floss.
However you use it the floss will restrict flow, I'm not a fan of it for that reason.

[BigBen]

You could put the floss behind the sponge so water that comes in the top travels through the floss.
However you use it the floss will restrict flow, I'm not a fan of it for that reason.

I was worried about the flow dropping, which is why I was hoping Purigen would be the answer.

[Andys temperate tank]

I've used filter floss in my fluval u2 for years. (Just cut my own pieces from a sheet). It's never affected the filter, just swish it with the sponges.

I won't use it in external filters though. It clogs too fast.

[BigBen]

I've used filter floss in my fluval u2 for years. (Just cut my own pieces from a sheet). It's never affected the filter, just swish it with the sponges.

I won't use it in external filters though. It clogs too fast.

I'd use it in a internal, but this doesn't have an impeller, just an air uplift. I could try it to see how it works.

[fr499y]

You could try a flocculant. I use a pond one and every now and again when I clean the sump, the tank goes murky, so I’ll add a drop or two to the tank. Clears it up within a hour and looks crystal clear

[plankton]

Purigen will work well in a normal filter, I don't see any reason why it shouldn't work in an HMF as long as there's a flow through it......
Otherwise, @fr499y's flocculant should do the job.