Building a new tank for Paros

[Dorothee Jöllenbeck-Pfeffel]

Hello!

I am now planning a new, bigger tank for my phoenicurus, 60×40(ground)x30(high) with HMF (in tank math filter with air pump or rucksack-filter).

What do you think, which foam material would be better for Paros: the one with the bigger holes (doesn’t block so quickly) of the finer material (their would be no no risk that little Paros could get lost in….

[Davy Grenouillet]

You can use a little bubble corner filter with peat granule on it.

[Dorothee Jöllenbeck-Pfeffel]

Hello Davy,
I don’t understand what exactly you mean,, do you mean a corner HMF with bubble filter/pump? Filled with peat. Something like that: http://www.luftheber.com/hamburger-mattenfilter.html ?

[Davy Grenouillet]

Like that: http://merlinmarina.com/images/fishsupplies/fs_filter_aim_corner_bubble_big.jpg

[helene schoubye]

In my bigger tanks I use both the small corner filter in some and in others I use any other ‘old’ pump as long as they are not too powerful. (eheim powerball, smaller fluval pumps) I ‘wrap’ them in the hmf filter material (as in Dorothees photo) – and I use the tyoe with the bigger holes.
Even though you dont need strong current in paro tanks, and small bubble filters are good in smaller tanks, – but if you get around 50 or 60 liter, I think it does make the waterconditions more stable with a bigger pump and more filtermaterial. I seldom change them or rinse them, thats the advantage of having a big hmf piece in the tank.
But it is nessesary to ‘slow’ the flow down, – this I do by wrapping the hmf foam around the pump, covering the output thing, so that it only gives a tiny bit of circulation. (it doesnt look pretty, and is often quite clumsy, but after a while some leaves or moss or a piece of wood will hide it)

[Pavel Chaloupka]

I would go with higher PPI(pores per inch), as you get much bigger specific surface to be colonized with all the helpfull microorganisms. The finer the material the better as long as you are able to maintain the flow of the water. If I recall correctly I one kubic meter of 20 PPI phoam has more then 2 square kilometers of the surface. If the flow of the water is not to fast, these foams almost never get obstructed. Of course it has to be polyurethan foam with open pores.

[Tautvilas Laureckis]

Davy, here is more simple example of your filter idea 🙂

[Dorothee Jöllenbeck-Pfeffel]

Hello!
the question above has answered itself by time …
Behind the math filter material with the big holes I found fife baby Paros (the linkei).
They didn’t look starved, but of course I have caught them and put them in a breeding tank.
And I changed the foam math by a math with smaller holes, which I already had prepared for the new tank, which still isn´t delivered….

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