Hiya People, I have had my tank for about 2 years now and i never really got it to the level i wanted, River and reef system 94ltr it holds: 1 x Royal Gramma 1 X Percula Clown 1 X Yellow tail blue damsel 1 x Emerald crab But my main problem is algae! the purple slime and hair algae! its driving me nuts its making my tank look like a Armageddon aftermath! Ive tried a quarter water change but the slime just keeps coming... should i do a water change 3 parts water of the tank?? hmm lost my wording there but i hope you know what i mean! any advice welcome! also will a protein skimmer help me get rid of this sort of problem?