Atlantic Water Gardens Skimmer Rock Lids DeWitt Both are heavy and sink

Both are heavy and sink down into muck directly where applied

It works to remove ammonia

This lightweight ribbon-type material is commonly used in AquaFalls pond filters in place of lava rock

Can be used as a support grate for other layers of media due to its very sturdy and open design

Atlantic Water Gardens Skimmer Rock Lids DeWitt Both are heavy and sinkSay goodbye to that plastic fake rock look forever with realistic Atlantic Water Gardens Rock Lids. Molded from real stones, the sturdy fiberglass construction, authentic textures and incredibly real finishes set these Rock Lids apart from other faux stones. Three sizes and three regional colors ensure the perfect fit for every application. No one will ever know its not real! Model Size Matching Pump Vault Skimmer Dimensions RL30 Small PV1800 PV2300