If you were close I would say "No Problem" But just FYI Sea Hares are usually fairly inexpensive, but before you introduce one in your tank you better make sure that all your filter and pump intakes are covered with sponge or a filter bag..The Sea Hares are quite prone to getting sucked into them and then they can "squirt" contaminating your tank.{ask my son about that} They are however one of the greatest little hair algae munchers I have ever seen. One question. Why so much hair algae? Have you checked your phosphates? Remember even if your tank shows no evidence of phosphates it could be absorbed by rock and algae. How often do you do water changes? I had a hair algae issue in my 72g and between the Sea Hare and some Rowaphos {and more frequent water changes} The hair algae is pretty much extinct..Yay!!