How much would you concider a lot ? I have about 50kg give or take. Although some of the bits will be going in the sump rather than the DT. I just thought if i managed to establish a good colony now then they would breed fast enough to not get wiped out ? If you think i'll need more LR then I'll get some now as i think i might want a few more plate pieces to do my cave work anyhow. I just hate the idea of having a fish starve to death, so wanted him to feel like he'd been dropped into a Las vegas all you can eat buffet.