PLEASE NOTE: Not all of the algal culture media sold by UTEX are available in media kits. Click here to view all media available in test tube and Liter volumes.
Media Kits For Large Volumes
The main difference between the two—besides not being made by our magical hands—is the total volume being shipped. Media Kits contain concentrated chemical components that when mixed with the appropriate volume of water, produce the specified number of Liters indicated. The lower total volume and weight means it does not cost as much to ship.
Why does the weight matter? Ordering ten, 1-Liter volumes of prepared media would have shipping costs calculated using the total combined weight of 10 Liters, or approximately 25 lbs ( ~11.34 Kg). If a Media Kit can prepare 10 Liters of media but omits most of the water, then the shipping cost is calculated with the weight of the concentrated solutions only, or approximately 2.5 lbs (~1134 g). Add those savings to the generous discount the Kits provide on a per Liter basis, and you are left with a cost-effective solution to your media needs.
Media Kits include all the chemical components needed to prepare the total volume of media indicated. All solutions are shipped sterile and should be handled aseptically to avoid contamination.
Media Add-Ins provide a nutrient boost to algal culturing media, or add a missing component needed from the original recipe. Trying to grow diatoms but the media you have on hand does not have a silica source? Use the Sodium Metasilicate Add-In to provide that source of silica. Silica is often required when culturing diatoms or any other strains that require silica.
Media Upgrade Kits provide additional components needed to build upon a simple base medium. For example, Bristol Medium is the base component for more nutrient rich media like Bold 3N (B3N) and Modified Bold 3N Medium (MB3N).