Filling her up

muck · #1 07-05-2006, 03:12 PM

Quote:

Originally Posted by TheReefGeek

Wow! Maybe I am just "lucky". I don't need any fans blowing across my water, maybe that helps reduce evaporation.

1. Your tank is in the basement.
2. The fans are the biggest contributor to evap.

TheReefGeek · #2 07-05-2006, 03:20 PM

Yeah probably with my big surface area of water because of my big sump, I don't need the fans for cooling. And yes it is in the basement.

I had a 110 and 50 with no sumps in a second story apartment during the summer and don't remember high evaporation though, but again, no fans across the water at all, my lighting was seperated from the tank so there was little/no heat transfer.

The salinity swings without auto-top off of 10% evaporation per day must be pretty significant?

Johnny Reefer · #3 07-05-2006, 03:27 PM

Quote:

Originally Posted by TheReefGeek

.....The salinity swings without auto-top off of 10% evaporation per day must be pretty significant?

This is what I expected when I first got into Marine aquarium keeping, without an auto top-off, 1 1/2 years ago. But, IME, 10% evaporation caused an increase of only about 0.001 - 0.002 SG.

Cheers

,

TheReefGeek · #4 07-05-2006, 03:29 PM

Thats not too bad at all.

SerLunchbox · #5 07-05-2006, 03:42 PM

I get about a 0.01 - 0.015 swing with SG it seems.

If i can get these lights hung from the ceiling (or raised higher with wood or something) then i THINK i will be ok ... i am thinking maybe another 4" or so.

anyways, i will look into that top off system. Gonna Need something but at least it will be a help!

Johnny Reefer · #6 07-05-2006, 03:47 PM

Quote:

Originally Posted by SerLunchbox

I get about a 0.01 - 0.015 swing with SG it seems. .....

! Are you sure? That's quite a big swing.

Cheers

,

danny zubot · #7 07-05-2006, 06:49 PM

Quote:

2. The fans are the biggest contributor to evap.

How does that work? If the fans are cooling the water then there should be less evaporation, no?

SerLunchbox · #8 07-05-2006, 07:01 PM

Quote:

Originally Posted by Johnny Reefer

! Are you sure? That's quite a big swing.

Cheers

,

Yeah ... that is generally what i have been reading from the refractometer ... though it doesn't seem right at all.

Given that 5 gallons shouldn't raise the SG that high.

I think i will have to recalibrate it