Jellymeat Posted May 29, 2012 Report Share Posted May 29, 2012 I have a sump on my new freshwater tank and just wondering what is better? Quote Link to comment Share on other sites More sharing options...
henward Posted May 29, 2012 Report Share Posted May 29, 2012 if you get scoria, get smaller pieces... more surface area, bio balls are more effective when it is a wet dry filter... if its submerged they are not as effective. i would actually get 'sintered glass noodles' on Trademe, very good, cheap and value for money.... Quote Link to comment Share on other sites More sharing options...
caserole Posted May 29, 2012 Report Share Posted May 29, 2012 Scoria can contain heavy metals, so needs to be washed and washed and ....... (you may still have a problem). Once you have done this it will still release very fine sand size scoria that is very sharp ( it's a hazard to water pumps and glass ). Scoria also works best in a wet dry configuration, the air around the media allows the bacteria to proliferate to a greater level. It also appears to brake down (due to water erosion maybe) over time, producing even more fine sand size pieces. If you can afford the 'sintered glass noodles' it would be a better option, so would a wet dry configuration (for out right biological filtrating power). Quote Link to comment Share on other sites More sharing options...
David R Posted May 30, 2012 Report Share Posted May 30, 2012 You can get the noodles in a bulk 20-25kg sack for a reasonable price if you need a lot of them. Pumice would be a better option than scoria. As Henward asked, are you using it submerged or above the water level? Quote Link to comment Share on other sites More sharing options...
henward Posted May 30, 2012 Report Share Posted May 30, 2012 its actually an easy option. Bio balls if its a trickle wet dry. if its submerged, Sintered glass noodle is awesome value. http://www.trademe.co.nz/pets-animals/f ... 226831.htm couple sell it online, ask for a bulk price. Quote Link to comment Share on other sites More sharing options...
Jellymeat Posted May 30, 2012 Author Report Share Posted May 30, 2012 Thanks for that guys. It will be submerged. I will get some of sintered glass noodles Dose anyone know the volume of about 1kg so i can work out how much to get Quote Link to comment Share on other sites More sharing options...
Jellymeat Posted May 30, 2012 Author Report Share Posted May 30, 2012 I just purchased 15kg of them dont know if it will be too much or not. i was going to get 10kg but though another 5 would't hurt. Thanks once again for the help guys Quote Link to comment Share on other sites More sharing options...
henward Posted May 31, 2012 Report Share Posted May 31, 2012 I just purchased 15kg of them dont know if it will be too much or not. i was going to get 10kg but though another 5 would't hurt. Thanks once again for the help guys depends on turn over and stock and water volume, tank size. the more the merrier when it comes to bio media but with in reason. i prefer to over stock on bio media to be over capacity than under. Quote Link to comment Share on other sites More sharing options...
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