martib Posted August 25, 2013 Report Share Posted August 25, 2013 I've got a system that I had set up for Africans so sump has alot of coral as media. I now what to set it up to breed L numbers. If I take out all the coral what should I replace it with that will be suitable for keeping and breeding L numbers What are your thoughts. Cheers Marty Link to comment Share on other sites More sharing options...