tanks OK thanks Kitty -but could be better. I made the mistake of buying one of Takishi Amano's book's on aquascaping and I was hooked instantly! I now realise I probably have to have a complete clean out of my tank with new, nutrient rich substrate etc to half a chance of growing plants well. I'm a bit miffed too, having spent quite a bit of cash on a new Juwel aquarium to now discover that I can't get enough light output to grow many of the plants I hope to grow.......DOH!! I don't suppose by any chance that you have a Juwel Trigon 190 that you have managed to add tubes to successfully? It's driving me mad. I'll post some pictures of my tank as it is now, the moment I figure out how to! New to forums sorry and can't get to grips with attaching pictures.