Using mopani with lots of bits of carved manzanita arranged around and sealant-ed. Also little tiny branchy manzanita that stays white even underwater. The ukaps manzanita was as good but different so i used it in the other tank. The mopani was heavy so i needed help and i had vto put so much tape on. The last picture shows the final product after changing it around a lot( sometimes i changed it because it fell) Its dry now and has a black background.