well i have now modified my two small tanks for lighting that was fun... not the 17g was ok but the 8g was hard going but got my lighting in it both of those have argonite and water in now still waiting for water for my 79g its coming but slowly will add salt in the next day or so will be getting my live rock on sunday and some live sand for seeding cant wait to pick up rockwill be geting 80 kilo's to divvy up between the 3 tanks any sugestions please put them forward or if you want more info just ask