So I’m having hair algae bad again. I’m thinking of either a sea hare or a black Molly. Not really wanting to get anything too pricey. And not wanting to use chemicals. I had a rainford goby last time but it seemed to disappear after the hair algae was gone. Which I know sea hairs would as well but I can give them food. Any thoughts on it? Right now I have a fluval evo 13.5 with two clown fish. Some clean up crew including some hermit crabs, emerald crab ( which isn’t eating the algae) turbo snail and a fighting conch. I’ve also heard urchins are good but I do t want them eating the few coral that I have.