Please arrange your fundamental elements like, rocks, woods, substrates according to you design at first before scattering s.e.e.eds. Day 1: Put the fundamental elements into the tank. Scatter the s e..eds.Make them all moistly with sprayer. Day 4: A few se.e.eds start to grow green sprout. Keep spraying water. Day 7: Sprout has all popped out, add water to cover the gravels or sands Day 9: They are already half of the full size.Turn the growing light on, 8 hours each day. Day 10: Change water. Day 11. Put your fish inside. Turn the air pump and filters on. PLease read the instruction book carefully before growing. It is very important.