Thank you very much. Those last two are how it looks now, apart from the empty bottles are now full, except the last one, that's filling up now. I'm so pleased with it but I need more space! This one should keep me happy for a few years though! I lost the last fish room and went back to tanks all over the place 2 downstairs and 1 upstairs, I downsized too! it was a pain, now I am elated, I still have another tank to go in which I have to do a water change on later, fun fun fun! This is my second stupid idea, the first one was the big tank! I love it!