Tag: aquarium

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

Top 8 tips for saving water.

Posted on by TheFishVet - Richmond's School of Fish

As fish keepers, we may bear some of the brunt of the watchful eyes of neighbours as big water users. In my opinion, we would struggle to use as much water as those who have swimming pools or thirsty gardens with large areas of lawn. Regardless, we need to do our bit to save our most precious resource by utilising some of these water saving tips:

  1. When performing water changes, collect the water for watering the garden.
  2. Collect rainwater into clean buckets for use in your tanks.
  3. Use a denitrificator (available through good aquarium stores) to convert nitrates to nitrogen gas and oxygen.
  4. Use aquatic plants to utilise fish wastes so that the frequency and quantity of water changes can be reduced.
  5. Feed good quality fish foods so that they do not pollute the tank (good quality foods tend to be in the mid to expensive range).
  6. Use an aquarium cover glass to reduce evaporation from the tank.
  7. In ponds, ensure that fountains and water falls do not cause water to spill over the sides.
  8. Provide shading for ponds to reduce evaporation, protect fish from the hungry eyes of predatory birds and to prevent excessive algal growth from the excess sunlight.

Dr Richmond Loh, The Fish Vet.

http://www.thefishvet.com.au