When planting marijuana with hydroponics there is a choice growers can make, they can start with seeds or with clones. Starting with clones will mean having access to a marijuana plant that is healthy and has the type of high the grower likes.
Starting with seeds means that it is possible to get an Indica that is easy to grow and at the same time will provide a large harvest for the limited amount of marijuana plants that can be placed in the hydroponics system. This also means that it can be seeds saved from other plants or from smoke that was bought that was a good high.
That means no one needs to know when planning to grow a marijuana hydro crop. It is important to make sure marijuana crops are kept secret since they are an illegal crop to grow.