LF a good 2 or 3 part doser

[H2o2]

Just like to say you can also use the Sclobster that JLs sells or the one Paul sells at Oceanic corals on a timer and if you have a controller with a net module while you are away or at work especially in the beginning of setting it up you can adjust them to increase or decrease amounts . Also Check out Mr. Saltwater on youtube to see how he programs the GHL doser doesn't seem that tough and if I choose I would love a GHL