henward Posted January 21, 2013 Report Share Posted January 21, 2013 Just got myself 50litres of K1 kaldness media. these need to be 'boiling' constantly. not too violently but a constant boil to circumate air, water and the media itself int he chamber. anyways, putting these in the compartment by under the socks to get the brunt of the dirty water. i am wondering what sort of air pump i need for boiling these? i mean, 200 lph seems exccesive - i used to use the little hailea pumps, aweosme pumps, cheap and good output. just wondering, how much bubbles do i need and what sort of output, i cant envisage it Quote Link to comment Share on other sites More sharing options...
blueether Posted January 21, 2013 Report Share Posted January 21, 2013 as they are close to neutral buoyancy the dropping water may keep them tumbling in the chamber? 50 L sounds like alot... Quote Link to comment Share on other sites More sharing options...
David R Posted January 21, 2013 Report Share Posted January 21, 2013 been shopping while on holiday eh... I'd just chuck them in and see how it goes with the water movement from the sump then try the airpump if its not moving enough. I'm still not sold on them, everyone on MFK thinks bioballs submerged are useless cos they don't have enough surface area yet somehow this stuff is amazing. I'll be interesting to see how yours go, seems to work for the aquaculture industry... Quote Link to comment Share on other sites More sharing options...
henward Posted January 21, 2013 Author Report Share Posted January 21, 2013 been shopping while on holiday eh... I'd just chuck them in and see how it goes with the water movement from the sump then try the airpump if its not moving enough. I'm still not sold on them, everyone on MFK thinks bioballs submerged are useless cos they don't have enough surface area yet somehow this stuff is amazing. I'll be interesting to see how yours go, seems to work for the aquaculture industry... they dont float, they kinda mill around the water... dont know the word for it:D but they kinda just partially sink, with bubbles (intended use for them) they move around quickly. the sicks dont have much current, its extremely gentle as the sucks literally break the force of the water. also, every article and stuff online say boiling them is key, manufacturer too. yeah, its a funny one, i didnt buy it on holiday lol i got it on ebay, free shipping, otherwise, shipping is 50% of the actual media but found a guy in pensylvania that ships free. i have seen research on them that they work well but cycling time is longer apparently, also they use them for sewage treatment plants and suppsedly very efficient. maybe they work well with the air bubbles, vast quantities of it, in fact, there shouldnt be much different with bio balls floating with air bubbles i suposed, but they are harder to move though as they are bigger. i got them anyways, largely cos they look awesome, maybe i got them more so cos i thought they look cool and i like watching them in action :spop: yeah 50 litres is a lot but i wanna fill a whole chamber. decided, i wont replace my sump, no need, my current sump actually can handle my new tank i just need to re distribute the media to increase flow! Quote Link to comment Share on other sites More sharing options...
David R Posted January 21, 2013 Report Share Posted January 21, 2013 I've seen a couple of posts on MFK recently showing how to calculate how much K1 you need to deal with the weight of fish you're stocking based on the calculations they use for aquaculture, very interesting. It certainly seems to work well when set up right. Quote Link to comment Share on other sites More sharing options...
blueether Posted January 21, 2013 Report Share Posted January 21, 2013 in that case I think I would buy 2 of those bubble wall stones and have one on either side of the chamber: View from above ------------------------------------------- <= Sump wall |===================| <= Bubble wall | K1 | | K1 | | K1 | | K1 |<= First weir | K1 | | K1 | |===================| <= Bubble wall ------------------------------------------- <= Sump wall Quote Link to comment Share on other sites More sharing options...
henward Posted January 21, 2013 Author Report Share Posted January 21, 2013 intersting diagram so the media will kinda go in a circular motion? yeah david, i have read many good things about it, to be honest its probably over kill, but i really really like it:D i probably do it more for me than the requirements of my fish stocks lol Quote Link to comment Share on other sites More sharing options...
blueether Posted January 21, 2013 Report Share Posted January 21, 2013 Two circles, media and bubbles rising on both (two) sides and falling in the middle. I would thnk that this would be the best way to get fluidisation in a rectangle chamber of a sump Quote Link to comment Share on other sites More sharing options...
henward Posted January 21, 2013 Author Report Share Posted January 21, 2013 Yes makes sense! How about another in middle for maximum movement.. Encouraging them to hit each other is important I think Quote Link to comment Share on other sites More sharing options...
blueether Posted January 21, 2013 Report Share Posted January 21, 2013 I wouldn't think it would help, but don't know. They should be actively coming into contact in the top-middle of the chamber and as they are rising in the bubbles Quote Link to comment Share on other sites More sharing options...
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