Tag: filtration

Evaluation of three types of … floating plastic media … biofilters …

Posted on by TheFishVet - Richmond's School of Fish
Aquacultural Engineering
  Volume 45, Number 2 (September 2011)
Evaluation of three types of structured floating plastic media in moving bed biofilters for total ammonia nitrogen removal in a low salinity hatchery recirculating aquaculture system
   Authors: Timothy J. Pfeiffer 1, Paul S. Wills 2
   Author Affiliations:
 1: USDA Agricultural Research Service, Sustainable Marine Aquaculture Systems, 5600 U.S. Hwy 1 North, Fort Pierce, FL 34946, USA
 2: Harbor Branch Oceanographic Institute at Florida Atlantic University, Center for Aquaculture and Stock Enhancement, 5600 U.S. Hwy 1 North, Fort Pierce, FL 34946, USA
   Source: Aquacultural Engineering, Volume 45, Number 2 (September 2011)
   Page Numbers: 51 – 59
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   Abstract: Three different types of floating plastic media were evaluated for ammonia nitrogen removal in 0.11m3moving bed biofilters of a low salinity warm water recirculating aquaculture system. The three types of media evaluated were K1 kaldnes media, MB3 media, and AMB media. The highest volumetric total ammonia removal rates (VTR) was observed with the MB3 for the two daily feed load rates evaluated, 3.5 and 8.3kgfeed/m3media. The VTR for the respective feed load rates were 92.2 and 186.4g TAN removed/m3media-d. The percent removal was also highest for the MB3 media, 12.3 and 14.4% for the low and high feed rates respectively.
   Citation: Timothy J. Pfeiffer, Paul S. Wills . Evaluation of three types of structured floating plastic media in moving bed biofilters for total ammonia nitrogen removal in a low salinity hatchery recirculating aquaculture system. Aquacultural Engineering, Volume 45, Number 2 (September 2011), pp. 51-59, <http://ejournals.ebsco.com/direct.asp?ArticleID=46BEB7ACF158628A2E4B>
   URL: http://ejournals.ebsco.com/direct.asp?ArticleID=46BEB7ACF158628A2E4B

What to do if food is accidentally tipped into your aquarium?

Posted on by TheFishVet - Richmond's School of Fish

The lid fell off, you sneezed or your child tipped the lot in? The food will need to be removed as soon as possible because uneaten food will pollute the tank. Use a fine net to retrieve the food and then with a gravel siphon, vacuum it up off the bottom. Do not feed the fishes for the next 1-2 days and in addition to your weekly water tests, monitor the ammonia and nitrite levels daily for the next week or so to see if there is indication of any pending adverse consequences.