Green hair algae = nutrient problem
What are your parameters?
Creatures "eating" the hair algae will not eliminate the problem..... it just recycles the nutients..... Sure it will help, becuse the skimemr can access those recycled nutrients more readily..... but to break the cycle, you need to fix the nutrient issue.....
For that we need a full system description - equipment / stock / feeding & maintenance regime, along with a set of paramters.... ammonia / nitrite / nitrate / phosphate / alkalinity / pH / Temperature.