How often should I do a water change?
 

I have a 10 gallon freshwater tank that I set up January 1st. I was changing 50% of the water every two weeks, but then my cory catfish died. It turned out the Nitrite was too high. The fish dealer told me I was changing the water too much on a new tank and didn't allow it to cycle properly. Anyway, I got the Nitrite under control by using Cycle and Stability.
So now that my water chemistry is fine, how often should I change the water?

Thanks!

what are the nitrates reading? i would change water as often as it takes to keep them at a max of 20

Nitrates are 20 and ammonia is safe (lowest reading)

sweet, spot on then!

I would go for 25% weekly on a tank that size and see how the levels go but then i do daily water changes pretty much anyways, weekly would be a blessing lol

Hey xingumike, how often should I change my 55 gallon freshwater tank? Also, should I use aquarium salt or something else to keep it slightly brackish for my puffer?

I only have one spotted puffer fish, ghost shrimp and two mollies living in it. I keep the salt level at 1.006, because that's what the fish store dude told me to do for the puffers.



:?

hey, tbh i aint got a clue bud, i have no exp. with a brackish or marine tanks at all and i know that puffers are notorious for needing spot on water conditions.

Best thing i can advise is to start a thread in the brackish section so your question doesn't get lost in here, there do seem to be a few puffer keepers on here so im sure they can advise the best thing to do for ya.

Nice choice man puffers are cool 8)

I'll check out the brackish section. Thanks.

I change approximately 20%, removing the water during gravel vacuuming every weekend in my tanks, and they are right on the money to the point that I don't test unless I think there is a problem.

Not sure how you are testing, but I (and I think everyone else here) recommend a liquid testing kit, not strips.

50% a week.

I change 50% a week with a heavy gravel vac. All 10 gallon tanks with and without plants.