salinity

[TC51]

Thanks for the replies guys
Doug Yes I do have some livestock in the tank yellow tang, couple clowns and a few coral frags they all seem to be doing OK I will be picking up a refractometer tonight so that will make a difference as I believe it to be a faulty meter. I do wash with fresh water after each check.
I am in the process of setting up a 120 gal and transferring the live-rock and livestock soon so getting the 33 operating at peek is important to me.
Once again thanks very much for your replies and help guys I appreciate it.
Tom