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Old 06-28-2004, 03:56 PM   #1
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Rowaphos

I've just got some Rowaphos (500ml, which it says will treat 200-400litres of water, so I'm going to put just over half in my 35gallon initially, then use the rest over the next couple of months), and I'm just wondering where to put it?

I have an Eheim external wet/dry canister filter, with 2 baskets of filter balls (eheifsubstrat) inside and the wet-dry cone on the outside.

Will the Rowaphos work if I fill a small filter-bag with it and take a few of the balls out of one of the baskets (so it will fit in) and put the bag in the basket? Where would you place the bag - in the middle, top or bottom of the filter balls?

Or, would you get 2 filter bags and fill them equally with the Rowaphos, half the required amount in each, and take a few balls out of each of the 2 Eheim baskets and put a filter bag in each basket?

Should the filter bags be packed tightly with Rowaphos, or should there be a bit of space in there?

And, if possible should I get a fairly large filter bag and spread the Rowaphos out in it, then stretch the bag over the whole of the top of the basket (so the water HAS to go through it), or will just having a small bag somewhere in the basket do the trick ok?

Thanks!

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Old 06-28-2004, 04:14 PM   #2
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I just throw it right in my sump. Just put it in a hight flow area.
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Old 06-28-2004, 04:15 PM   #3
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I don't have a sump :/

High flow would be in one of my filter baskets (probably the first one) I guess?

Do you fill a filter bag with yours and place it somewhere in your sump then?
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Old 06-28-2004, 04:20 PM   #4
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Yep you can just throw it in the first basket. That would work fine.
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Old 06-28-2004, 04:25 PM   #5
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Anywhere in the first basket?

Should I tightly pack the filter bag or leave a bit of "air" in there?

Will taking some of the filter balls out of the filter (so that the bag will fit in) affect my bacteria at all??

Thanks!

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Old 06-28-2004, 06:29 PM   #6
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hou have enough lr that it shouldn't pose any problem
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Old 06-28-2004, 06:59 PM   #7
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I've got a big piece of rock (which I'm told will be "live" by now) that's been in there for a few months, and also 2 smaller pieces, and 2" of live sand.
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Old 06-28-2004, 07:00 PM   #8
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Should I tightly pack the filter bag with Rowaphos, or leave a bit of space in it?

And, can I dump it anywhere in the first basket??

When I'm opening the filter up, I'll obviously be draining the water out of it. Will the filter balls and the bacteria on them be ok for the few minutes the filter is dry while I take a few balls out by hand and put the Rowaphos bag in there?
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Old 06-28-2004, 07:16 PM   #9
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A bit of time out of water is ok for the bio balls, you just don't want to wash them out with fw, rinse them in sw.
The idea for the rowaphos is for the swater to flow thru it, not around it. so Id pack it like carbon
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Old 06-28-2004, 07:18 PM   #10
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The balls won't be washed at all

So, I should pack a filter bag tightly with Rowaphos and dump it in the middle of the basket with some balls all around it? I'll need to seal the bag - any suggestions??
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