@oystri sorry for the late reply. Herbert is very low maintenance and no, you do not have to buy special seeds. You will get a subscription and the sponges will be available with us only for some time, however you can experiment with any seeds you want. We just can't guarantee how they will behave since we can't test everything on the market. Hope this answers your question.
Sign in to BetaList
Connect with makers and early adopters exchanging product feedback and ideas.