Fresh water top off?

[tdog7879]

This weekend i change from a glass top to a half eggcrate and half open and added some t-5 light fixtures...anyways i have notice that iam doing more FW top off everyday. Is this normal? should i put the glass on the open side?
If i put the glass back on will light penatrate.

 

[srgvigil]

If you leave the glass top on it will be harder for the water and air gas exchange. My suggestion would be to keep the eggcrate and just keep topping off.

 

[tdog7879]

Originally Posted by SrgVigil
http:///forum/post/2640080
If you leave the glass top on it will be harder for the water and air gas exchange. My suggestion would be to keep the eggcrate and just keep topping off.
do i need to watch out for my salinty levels with some much water evaporating?

 

[mr_x]

Originally Posted by tdog7879
http:///forum/post/2640107
do i need to watch out for my salinty levels with some much water evaporating?
if you let too much evaporate, the salinity will raise. what size is your tank?

 

[tdog7879]

Originally Posted by Mr_X
http:///forum/post/2640116
if you let too much evaporate, the salinity will raise. what size is your tank?
80 gal. tall

 

[oceansidefish]

I would highly recommend an auto top off. I have a JBJ works great costs about 50 bucks, I use a 2.5 gallon for RO storage but you can use a 5g bucket or whatever you can fit.

 

[metweezer]

When water evaporates it is the fresh water that is evaporating. So as X said your salinity will rise because there is the same amount of salt but less water. Top off with fresh RO water.
If your old lights were pc's then the t5s are burning brighter (hotter) so that could explain the higher evaporation rate.