I've never done this and I think, if it is possible, will take a lot of work. Seaweed needs sea water.
You could try an alternative. How about planting Okahijiki in the garden? This type of veggie is used in Japanese cuisine and has an interesting crunchy taste.
It's known as land seaweed and grows in marshes. It's not really seaweed and is part of the tumbleweeds family (salsola family).
I just ordered seeds online and will plant them in the garden! They look great!
Jun 24, 2011
Growing your own seaweed in a tank - Yes by: monica
yes, u can grow your own seaweed in tank just like fish.if u cant get the seawater, u can use artificial salt and make the salinity around 30 ppt.just like fish, u have to make sure the aeration is working because seaweed also require Dissolve Oxygen for its growth. and dont forget to put Hoagland solution (fertilizer for seaweed growth) as their feed..good luck
