help please

FMF0331

Valuable Member
View Badges
Joined
Sep 24, 2011
Messages
1,837
Reaction score
1,916
Location
New York
Rating - 0%
0   0   0
57170773658__BF1EF6B2-082E-4619-8083-08EA068922D4.JPG
Can anyone out there please tell me what the top gauge is for - i know the side gauge is for the CO2 in the tank
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%

New Posts

Back
Top