ndw
Aquarium Advice Activist
I'm sure this question is on here somewhere but I can't seem to find it. Is a 20% weekly water change to much in a 10g tank
Checked on aqadvisor and it says I'm 96% stocked so 20% is about right. Thanks !
Water changes at the very least should be done in response to nitrate removal.
Nitrates should optimally be around 20ppm. So if you have a 40ppm nitrate reading, then do a 50% water change.
Saying a 20% water change will be enough is really just ill informed. There are too many variables to consider when managing a tank. Are you overfeeding? Are any fish messy eaters? Do you have a substrate that allows food to get stuck and go uneaten? Does your food get sucked up into the filter just for it to decay and increase nitrates?
50% is the standard amount that people change on a weekly basis and for most people that works just fine. So in short, test your water. If the nitrates are high do a bigger water change; if they are low do a smaller one.
I have always done 20% would starting to do a 50% water change be bad for the fish or effect them. I done 20 % this morning and my nitrates are high still although 0 ammonia and 0 nitrites so looks like I will have to start bigger changes
They are between 20-40 on the chart and I done the 20% change this morning