Frag tank questions

[sphelps]

Only problem with eggcrate IME is it tends to be a host for all sorts of algae. Once encrusted with coralline however it's ideal. I would still suggest it over something like gravel or rubble but installing it in multiple smaller sections that can be removed in intervals for cleaning would be wise. Another option would be drilled acrylic like the eshoppes frag racks, much easier to clean and holds plugs better.