"Water Changes"

I do 50% changes every other day and monthly canister cleanings :)
 
I do 50% water changes on all my tanks weekly..my discus tanks 2Xweekly
my fry tanks every other day.

it is rare to find fish that suffer from large water changes ..unless the tds is high in the tanks. messy fish can adapt to high tds and have issues with large water changes.
best to get them on a schedule soon. tds can build up quickly in a tank with small water changes.(remember it is cumulative)
 
I do 50-95% water changes on most of my tanks weekly. My fish eat DURING water changes. They do not get stressed. I have two 55s, a 29, and several 10s.
 
Unlike what most people have been saying, I average about 20% changes per week but all tanks are not the same. My goodeids and cory tanks do best with lots of small changes rather than large changes so that is what they get. The cories get lots of small water changes with rain water when I can get it or with part RO and part tap water when it's not raining. The rain water changes of 15 to 20% happen daily if it keeps raining. I do not warm up the rain water. The idea is to simulate a rainy season in their natural habitat and the rain water goes in as soon as I collect it and let the bit of dust and silt settle for a few minutes. My livebearer tanks get larger changes with tap water. The 20% I stated at the beginning of this post is only an average, each tank gets what it needs for the fish that are in the tank.
 
50% Water changes weekly. Python rules wc's. :) I acclimate my fish with dechlorinated water with near same temperature as the tank, very slowly refilling to 50% of new water for 30 minutes;takes time but it really helps out and no crash later.
 
Depends on the bioload in a tank and what fish I have in there, but I've found with most fish that more and more often is better. Sure, you can get away with 20% weekly changes with many tanks, but in most cases the tank looks better and the fish seem healthier with more than that. I had an african cichlid tank that I changed 50% of the water twice a week and did a big 80% change on monthly. Never crashed the tank and those fish were really healthy. I couldn't get them to stop breeding lol.
 
i do 40% bi-weekly on my 30 gal and 30% weekly on my 10 gal, these daily changers must not have plants
 
More often is better in some cases as Jaylin stated but in my case I keep fish that do best with frequent small changes. Once I have done the research on particular fish's needs, the general rules go out the window and I do what my fish need. More is not always better unless you have not yet researched the fine points or are not keeping species only tanks that can be adjusted without harming other fish. As a general rule more water changes are better but some fish just cannot take it. I will continue to be stubborn about not changing too much too often on those fish.
 
More is not always better ...

That's why I said "I've found with most fish that .." and not "what I find is... with all fish"

Sorry, but it bugs me when someone corrects me to say what I just said.

And zerosum, I find a lot of my plants do better with frequent water changes too. I figure it's a micronutrient thing. But your right about one thing, I didn't have any plants in the African tank, which is part of the reason why I did such large and frequent water changes. Well, that and cichlids are messy and these guys were forever having babies so ...
 
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