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Re:Kaldnes Media Experiment
Tuesday, September 18, 2012 8:07 PM
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Adam, I get what you are saying. What Tal and I are saying is that there could be more cost effective method to provide filtration than using a skimmer
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Re:Kaldnes Media Experiment
Tuesday, September 18, 2012 8:54 PM
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Essentially, the purpose of a skimmer is to low bioload by removing organics before they are processed into nitrate. Another tool for the job is an ATS which doesn't lower bioload, but instead exports nitrate. In the end, they do the same job in different ways. According to the electrical cost in my area, it costs me about $60 per year to run a skimmer and the ATS costs about $50 per year to run an ATS that will export the resulting nitrate from about 3 cubes of food per day. I think using both is the creme de la creme, and neither are of significant cost. I've seen how much more work it is to maintain reef tanks without skimmers, I wouldn't want to maintain broodstock or growout tanks without skimmers. Skimmer realls aren't that expensive to buy (especially secondhand), and they surely aren't expensive to run if you pay attention to buy skimmers with economical pumps.
Don't let fear and common sense stop you! =]
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Re:Kaldnes Media Experiment
Wednesday, September 19, 2012 12:28 AM
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I understand where they are coming from though, sometimes the work of keeping the skimmer working right & cleaning it isn't worth the extra water change volume. The non-relation is true, but oddly enough I run Kaldnes and no-skimmer on every fish system we have (not that there is anything wrong with a skimmer). Haven't updated anything in a long time, sorry! Our new favorite way to use the Kaldnes is: to put it in a 5g bucket, with a 0.3cfm airstone in the bottom center, and holes drilled on the sides near the bottom. Then we zip-tie styrofoam floats around the top of the bucket. One annoying thing we found was that Kaldnes likes a constant water level in order to tumble properly. The floating bucket design helps us, as we don't have ATO. Also, sometimes we overflow a sump, an if the bucket floats, you don't have a million little plastic pieces to pick up. We've done that more than once :-) An advance version puts the airstone in a 3" tube at the bottom center, drawing water in from the sump like an airlift into the media. Here are a couple pics of them in our sumps. Pardon the non-aesthetic nature of the setup.
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Re:Kaldnes Media Experiment
Wednesday, September 19, 2012 8:23 AM
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Feel free to scold me, it's been a while since I have read the entire thread, but a crazy thought here. What would happen if you just added Kaldnes to a skimmer body and continued to run it as normal? Would you get the best of both or would it render both useless?
<message edited by waldend on Wednesday, September 19, 2012 10:25 AM>
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Re:Kaldnes Media Experiment
Wednesday, September 19, 2012 4:28 PM
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That actually might be a very good idea....... hummmm You'd need a large skimmer body though.... Has me thinking now...
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Re:Kaldnes Media Experiment
Wednesday, September 19, 2012 5:31 PM
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I think the Kaldnes media would end up in the skimmer cup.
Don't let fear and common sense stop you! =]
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Re:Kaldnes Media Experiment
Wednesday, September 19, 2012 5:54 PM
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The problem I see with putting it in a skimmer, besides what Mindy said, is that only a certain percentage of water will be going through it. 100% of the water in my system goes through the media chamber after it passes through a filter sock.
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Re:Kaldnes Media Experiment
Wednesday, September 19, 2012 6:01 PM
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I have an old Euroreef 180 that made me think of it. I figure I could put at least a gallon of them in it.
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Re:Kaldnes Media Experiment
Wednesday, September 19, 2012 6:09 PM
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That RS-180 is a good skimmer though!  That's what I'm running on my broodstock system. It got the boot off my reef tank because the dang EuroReefs are so loud.
Don't let fear and common sense stop you! =]
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Re:Kaldnes Media Experiment
Wednesday, September 19, 2012 6:15 PM
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I didn't think about it riding on the foam into the cup. On the flow through, I thought it was just like a reactor where a small percentage went through. I guess the minimum flow rate required to be most efficient might depend on how much media you have which would affect the conversion rate. I have read articles in the past about plumbing the overflow direct to the skimmer input. Would a recirculating skimmer solve this? Assuming the media stays put.
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Re:Kaldnes Media Experiment
Wednesday, September 19, 2012 6:19 PM
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I have never ran it yet Mindy but its good to know you like it. I bought it a while back but never got it installed. Bought it as a RS-80, needless to say a nice surprise when the measurements didn't match up!
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Re:Kaldnes Media Experiment
Wednesday, September 19, 2012 8:02 PM
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Great Thread. We have been using the K1 media for about 9 years now. Our fry systems are made up of a 90 gallon round tub with a 20 gal long tank as a sump. In the sump, we have a basket with bioballs in it, blue bonded media on top and a micron bag zip tied to the drain pipe. We also run a skimmer and then the K1 media we put into a 3 gal carbuoy with holes drilled into the side about 3/4 of the way up. The return pump has a Tee so part of the water returns to the tank through a micron canister filter and part goes into the top of the carbuoy. This churns it up pretty good. You can also add an airline. With this setup we have kept up to 600 to 700 seahorses up to about 3 to 3 1/2 inches in size with no issues with ammonia or nitrites. I have fed up to a 1/4 of lb of frozen mysis per feeding in this system. We feed up to 5 to 7 times a day. Dan
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Re:Kaldnes Media Experiment
Wednesday, September 19, 2012 9:06 PM
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Here is mine in my new growout system sump:
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Re:Kaldnes Media Experiment
Wednesday, September 19, 2012 9:07 PM
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Dan W: Yeah, the EuroReef skimmers are good, but are somewhat fussy compared to the newer models on the market. I love my SWC skimmers, but I won't buy another one now that the owner of SWC is a convicted smuggler (and still somehow still in business). Re Dan U's comments: Wow, that is some very efficient media! It sure would help in compact sumps.
Don't let fear and common sense stop you! =]
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Re:Kaldnes Media Experiment
Saturday, November 3, 2012 10:22 AM
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Where did you get the green tub. Does it allow for good turning of the media
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Re:Kaldnes Media Experiment
Saturday, November 3, 2012 1:04 PM
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 Originally Posted by just clownin around
Where did you get the green tub. Does it allow for good turning of the media Got it at the dollar store. Seems to be working fine.
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Re:Kaldnes Media Experiment
Saturday, November 3, 2012 2:24 PM
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How big are the holes in the basket. Do they escape the basket?
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Re:Kaldnes Media Experiment
Saturday, November 3, 2012 3:18 PM
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I drilled holes that are slightly smaller than the media.
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Re:Kaldnes Media Experiment
Sunday, November 4, 2012 12:21 PM
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between deniballs and a k1 reactor it sure does almost eliminate water changes
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Re:Kaldnes Media Experiment
Saturday, March 23, 2013 12:26 AM
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So, I've my two reactors running for over a year now in my broodstock systems and I've noticed that the media has started to get stuck at the top. I shake the bottles around a bit and it starts spinning again but ends up back at the top after a while. Any idea what's going on here? Am I not getting enough airflow to keep the media tumbling? Is there not enough nutrients in the water to keep the bacteria fed? I wouldn't think it's the later since I still feed a lot and aiptasia grow like weeds. I don't have a fresh nitrate kit so I haven't tested for that in a while but I have Berghia in one tank that are doing fine and I've heard they don't do well with higher nitrate levels... Ideas?
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