Izzyf Posted May 11 Share Posted May 11 I was wondering how full I should fill my tank after a water change. I’ve read generally should be an inch from the trim however on my tank I was unsure where this started from. Should I fill the tank slightly more or is there enough/too much in it currently? Link to comment Share on other sites More sharing options...
Pepere Posted May 11 Share Posted May 11 On a rimmed tank I like to fill the tank so the waterline is just above the bottom of the trim so I dont see the waterline. 7 Link to comment Share on other sites More sharing options...
nabokovfan87 Posted May 11 Share Posted May 11 Yep, I'm right there with @Pepere . I fill mine 1/8" or so above the bottom edge of the rim. If you have something like corydoras and not a lot of space between the waterline and the lid, that could present a problem. Just a heads up for air-gulpers. Link to comment Share on other sites More sharing options...
Andy's Fish Den Posted May 11 Share Posted May 11 All the tanks in my fish room have the black trim, your basic Aqueon tanks, and I fill like others have said to just above the trim so that you can't see the waterline. I have a rimless tank in my bedroom, and it has a sump with a built in weir and overflow, and the waterline for that runs about 3/4" from the top edge. Link to comment Share on other sites More sharing options...
lefty o Posted May 11 Share Posted May 11 On 5/11/2023 at 3:48 AM, Pepere said: On a rimmed tank I like to fill the tank so the waterline is just above the bottom of the trim so I dont see the waterline. this, and if you run a HOB, high enough so it doesnt sound like a water fall. 1 Link to comment Share on other sites More sharing options...
JettsPapa Posted May 11 Share Posted May 11 On 5/11/2023 at 3:34 AM, Izzyf said: I was wondering how full I should fill my tank after a water change. I’ve read generally should be an inch from the trim however on my tank I was unsure where this started from. Should I fill the tank slightly more or is there enough/too much in it currently? I wonder what's the reason for that? I've always thought that there was no such thing as too full, as long as they aren't overflowing. 1 Link to comment Share on other sites More sharing options...
FLFishChik Posted May 11 Share Posted May 11 (edited) I have rimmed tanks as well, I fill to just above the bottom of the rim whenever I do a water change. I use it as a gauge to see how much water evaporates weekly and use that as a sign to top off between water changes. I live in FL so between A/C and ceiling fans, I get quite a bit of evaporation even with lids Edited May 11 by FLFishChik 2 Link to comment Share on other sites More sharing options...
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