It looks like red hair algae to me. If it is the same, kind of wiry stuff that I have, then I can give some advice, since I have it under control. It used to cover almost all my rocks, but now is mostly difficult to find in my tank. First, it is impossible to starve it out. I have tried that route. It is way, way more resistant to starvation than coral. Everything else in your tank will starve to death before this stuff dies. Also, you can't kill it by turning off the lights. It will survive for months in the dark. But, luckily, it seems to taste good to at least a couple different things. The foxface rabbit fish likes to eat it. He will keep it mowed to about 1cm. Probably other grazing fish like tangs will eat it, but I have never tried one of those. Most importantly, emerald crabs really like it, and they can probably clear a tank of it on their own. But emeralds are very haphazard eaters, and so it takes a lot of them. I had close to 10 emeralds in my 50g tank before I really noticed it starting to disappear. Also, I think the turbos may help to clear it, but only after it gets mowed really short, like 1mm. Lastly, it may be impossible to completely eradicate, since its little runners go into every tiny crevice in every rock. But, on the bright side, it will feed your grazers indefinitely.