its evaporating awfully fast...

adee

Member
how fast is too fast? What would make the water evaporate quickly? It seems like every other third day im topping it off...
 

meowzer

Moderator
What size tank and how much top off are you talking about...I add about a gallon a day to my 225g......Sometimes we skip one though
 

sickboy

Active Member
It is so cold and dry here I have been topping off about 1/4-1/2 gallon on my 38 every day. my nano isn't as bad b/c of the lid but it has been evaporating fast too. i started running a humidifier to help out.
 

adee

Member
its a 37 gallon... maybe 1/2 gallon.. if that? I will have to pay better attention to just how much.
 

florida joe

Well-Known Member
Surface movement heat and an open top is the answer to your original question, of course this is assuming you do not have any leaks
 

salty blues

Active Member
Originally Posted by ADEE
http:///forum/post/2929010
how fast is too fast? What would make the water evaporate quickly? It seems like every other third day im topping it off...
It's a fact of life with fish tanks and with saltwater you need to keep up with topping off since the salinity rises as water evaporates.
 

adee

Member
we are using RO water to top off... salinity has been perfect with little-no fluxuations. we have also done a partial water change since starting the tank too. I expected to have to have alot of top offs because of it being saltwater i just wasnt sure how much was too much. it is an open top tank, and as far as we know no leaks... we did do a test on it previously (before adding salt water/fish/exc) and didnt find any leaks. it has been pretty much every other day, not every third.. my husband corrected me. we never let it get more than an inch-inch and half below the top (of the black rim.. like 3" from actual surface of tank)
 

nw2salt08

Active Member
I have to top off my 55 gallon reef every couple days. Have since we turned the heater on. With winter conditions and the heater going, topoff is a given. More evaporation to try to make up for the lack of natural evaporation in the environment. The lights do also play a part in it.
 

adee

Member
sounds like its right on cue then... i always have a 5 gallon jug of each (one saltwater premixed and one ro water) it does stay in the house, in the dark so its good for a couple weeks. i just wanted to make sure it was typical to be evaporating at that rate. Considering we are using a heater now, lights, exc makes sense.
 

jackri

Active Member
Originally Posted by lil.guppy
http:///forum/post/2929199
I add 1/2 gallon every 2 days to my 46g
(its nice when its pre mixed)
I hope you aren't topping off with saltwater lil.guppy... please don't add more salt to your tank for topping off -
My 90g goes through about 2 gallons of evaporation a day. I have halides and cpu fans blowing across the water to keep it cool but yeah --- I get a lot of evaporation.
 

gypsana

Active Member
I put a mark on my sump with a sharpie to know exactly how much water to add so I was not adding too little or too much. Always fresh never salt added. as mentioned by jackri. I have an open top 90+ gal. and have 1 to 1 1/2 gal. a day evaporation.
 
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