Gracilaria containment experiment

Meredith has been working on an experiment to determine the best containment method for the Gracilaria in the Sotka Lab tanks. We have different “Grac. Shacks” which are hollow tubes with mesh on the ends. Each tube will contain Gracilaria. We are testing out glass tubes, clear PVC tubes, and cut falcon tubes that we have been using in the lab. We put the tubes filled with Gracilaria in different tanks. Some of the tanks are glass, completely full with water and some of them are white plastic tubs with shallow water levels. We are letting these samples run for 2 weeks. We are trying to determine which shack method is the best for Gracilaria growth, and also which tank method is the best for Gracilaria containment.  

Plastic containers with shallow water

Up close Grac. Shacks

Glass tanks