I got a large mangrove root,the one on zooplus.co.uk,i didint think my clowns would go inside as they have to swim nearly to the surface to enter or exit,the root is open at top and then splits into 10 thin roots,my prob is my biggest best clown has found his way in as i saw him in the top half of the root as soon as he saw me he darted down into the roots,ive not seen him for 4 days now,the others seem to come and go,how could i flush him out,soon as hes out im ditching the root,