how much top off water do you use?

[Proteus]

I use about 8 gallons a week on a 24"x24" tank.
While the wife's jbj with 150 halide is 2/3 liters a week. But it's covered

I'm expecting my volume to double as this week I'm putting halide back on my tank

[The Guy]

approx. 1.5 g per day 90 g tank with a 50 g sump glass covered DT tank

[kien]

Originally Posted by Amadod2

Hi all, so my tank is only two months old and its a 75g, i been noticing i have to top off my sump with RO water everyday about 2L worth, i was just wondering what everyone experiences were, how much is everyone toping up daily and if there were any mods you guys have done to slow down the water top off

On my 150g tank I go through roughly 8-10g every 5 days. Evaporation is normal, but there are people who dislike it and try very hard to reduce or minimize it. I on the other hand welcome the evaporation and try to use it to my advantage. That is, I use evaporation as a means to help keep my tank cool. I have a completely open display tank with fans that blow across the surface of my water to increase evaporation when the tank gets hot during the mid day.

Auto-top off systems are your friend. If you're manually adding top up water that does get annoying fast. Get a reservoir to hold your top up water and buy an auto-top up system. There are lots of them on the market.

[Dearth]

I have a 20 gallon garbage can for my ATO I fill that up once a month for my 95 gallon tank

[AdamsB]

I have an ato with a 5 gallon water container. The 5 gallon lasts me between 7-10 days on a 90 gallon with 30 gallon sump. DT is covered. Winter air is usually a little drier so I'm not sure how many gallons I'll go through in the coming months. I might bump my ato up to 10g for convenience.

[Midway]

Back when I had my 2 90s, I had a reservoir of about 15 to 20 gals plastic bin, I had to top it off every 3 to 4 days, that got annoying very fast like someone said it here. On my new 260G build, I went completely automated, now I have a floating arm that connected straight into my water filter. I just do a bit of maintenance every month or so and I forget about it.

[Madreefer]

144G display
55G sump
55G frag tank/refuge
Approximetely 5g is pumped from reservoir

[mikepclo]

120g + 40g sump @ 1.5-2g per day running Leds

[Sunee]

60 gallon display, 15 gallon sump, I use about 3 gallons a week in the summer and double that in the winter (ATO from resevoir).