Get a six line wrasse, I haven’t seen one since I didCurrently dealing with rust brown planaria/flatworms. They are ugly and a nuisance more than anything. I keep on top of them with siphoning. I bought a springer's damsel to try natural control, as suggested to me by the shop owner, but it , and before shows zero interest. Next step will be flatworm exit, I guess... Though I'm reluctant to try it.