Hi jcgoobee As Clive always says, we are not stupid because we don't know, we are just inexperienced, so don't be too harsh on yourself. This is all relatively new to me too but I find I am learning on a daily basis and having a nice tank to look at, at last, is a major bonus. The guys round here have some major experience with this planted tank game and I for one am so glad that they are willing to help us newbies out. All credit to them. Chris.