Rainbow Loom Acro - Cut to Order FragFrag Size 1" 2" Please note, this is a cut to order frag. If we do not have one prepped please allow up to 2 weeks for healing. When acclimating your new coral I recommend placing it lower in the tank to prevent shock due to high lighting. If your coral turns brown It could be due to a lack of light or excess PO4. If your coral turns white (pale) it could be excess light or lack of NO3&PO4. I recommend giving a coral few weeks to adjust to it's new