Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
If it's a separate system all together, every time you do water changes in the main tank, just dump the water in your frag tank. (if you do frequent water changes in the main)
otherwise, you may be able to get away with it, but remember, a skimmer provides two things:
water clarity and aeration.