Water change help

[molodets]

I have to add water every 4 days to my tank because it
evaporates.

Since I add about 7 to 9 gallons every 2 weeks,
do I still really have to do water changes?!

 

[NYreefNoob]

yes you do, thats evap water which as it evaps ur salinity goes up, your not doing a wc by adding ro\di water for top off, i go through 5g of top off every 3 days

 

[kalapnath]

What kinda lights do you use, how long do you leave them on for and how high is it off the tank just wondering ..................................

 

[strgazr27]

As noob said your not removing anything from the tank by adding top off water. The whole point of doing WC's is to remove the byproducts of the nitrogen cycle as well as other contaminents that build up in the water. The salt doesn't evaporate so your salinity goes up as evaporation occurs. If your not using an auto top off system than your much better off adding a little water every day instead of waiting till it's noticeable.

My 65 setup with sump evaps about a gallon/day which I manually make up with RO/DI till I finish my ATO setup.

 

[molodets]

I have T5 216w

I got blue from 10:50am to 8:25pm

white from 11:00am to 8:20pm

and Reef brite leds from 10:00am to 12:00am