I just got a yellow tang yesterday and its head seems like it is floating but it is just swimming at the topp and every once in a while it goes down for a second or two
his head seems like it is floating???? i don't understand....if you mean he is just floating around and not swimming, that is not good..is he in your display tank or a qt tank???
i took him back to the fish store and returned him because he was a few minutes from death and found out my salanity was way to high what is the best waY TO lower it?
By any chance are you replacing the evaporated water with salt water? You should be using fresh water if you are.
You could either do a small water change with a lower salinity mix or just replace some of your salt water with RO/Distilled water.
Take your time and lower it slowly so you don't stress out your current inhabitants. They are already acclimated to the high salinity levels.
I had the same problem myself because I was using a hydrometer that was way off. If you don't have a refractometer, they are inexpensive and are worth their price in gold. (Which happens to be $35 on ebay)
ya a tad high. Bit by bit, over time take out a little salt water and add your RODI water.
Make sure your water change water is right on and top off system is in proper order.