ok cheers guys will have a play with power heads, i have a chalk goby and he is superb at turning over the sand but the slime algae in one spot is back in a day... _________ Hardware-55G Rena Display,Filstar XP3 Canister Filter, 200w Rena Heater, 1xKoralia 3, 1xKoralia 2, Lee's Medium Airline Protein Skimmer, 8x39watt T5 Fish-Yellow Tang, Midas Blenny, 2xClowns, Neon Damsel, Blue Yellow Tailed Damssel, Chalk Goby Inverts-Snails, Hermits, Black Long Spine Sea Urchin, Blue Linika StarFish, Cleaner Shrimp, Coral Banded Shrimp, Feather Duster, Green Bubble Tip Anemone, Coral's-Green/Purple Mushroom's, Waveing Xenia, Button Polyps, Green Star Polyps, Toadstool Leather,  |