How much percent waterchange for channa's?

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JESTERX626

Plecostomus
MFK Member
Jul 24, 2005
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I remmeber people saying the less the better, saying somethinga bout big amounts of chlorine/chloramine in tap water will kill them easy? How much % WC do you do for your channa? Specifically, channa gachuas?
 
JESTERX626;712275; said:
I remmeber people saying the less the better, saying somethinga bout big amounts of chlorine/chloramine in tap water will kill them easy? How much % WC do you do for your channa? Specifically, channa gachuas?

for micropeltes tank, i change 80% of water every two week..
 
I think the main problem with doing large water changes is the resulting fluctuation in water temperature. This is what channa seem to be sensitive too.
I have been told that they will tolerate water that would have most fish gasping. But i'm not going to put that to the test. Please do watch out for temp fluctuations when changing water though as this has killed channa in the past.

phen_dox will probably have no probs as he lives in a lovely hot place where his tap water is going to be pretty warm anyway? maybe?

Anyway I change 35% every week, I heat and treat the water before adding it to my tank eg. Fill bath to temperature (no probs with tank water temp fluctuations) then add "fresh start" and syphon down stairs into to tank.
 
JESTERX626;712275;712275 said:
I remmeber people saying the less the better, saying somethinga bout big amounts of chlorine/chloramine in tap water will kill them easy? How much % WC do you do for your channa? Specifically, channa gachuas?
If you are refilling the tank with a hose simply let it run for a few minutes before topping up. Any chlorine will be gassed off, chloramines are easily treated with a product like Aquasafe etc. Check these products carefully however, as very few deal with Chloramine properly, despite their claims.The main problem with all snakeheads as far as I am aware is that of a) intolerance of heavy metals (again a good water additive will neutralize those), b)they are intolerant of pH fluctuations and finally c) they do not like wild temperature fluctuations. Of course if the temp stabilises within a few hours that's fine, but not if it takes 10+ hours etc. It really depends on the size of your tank, how you fill-up and what water products you use. I think 20%, twice a week, at equidistant points would be a good start. Some put forth the argument that because they take in air at the surface water quality is not such a big deal, this is a perverse and intellectually non-sensical stance. Hope this helps.
 
WhiteLineRacer;712488; said:
I think the main problem with doing large water changes is the resulting fluctuation in water temperature. This is what channa seem to be sensitive too.
I have been told that they will tolerate water that would have most fish gasping. But i'm not going to put that to the test. Please do watch out for temp fluctuations when changing water though as this has killed channa in the past.

phen_dox will probably have no probs as he lives in a lovely hot place where his tap water is going to be pretty warm anyway? maybe?

Anyway I change 35% every week, I heat and treat the water before adding it to my tank eg. Fill bath to temperature (no probs with tank water temp fluctuations) then add "fresh start" and syphon down stairs into to tank.


here tap water quite warm and i does not use any heater.. but they a little bit active after water changed.. don't know why, too happy or uncomfortable after water changed? :nilly:
 
JESTERX626;712275; said:
I remmeber people saying the less the better, saying somethinga bout big amounts of chlorine/chloramine in tap water will kill them easy? How much % WC do you do for your channa? Specifically, channa gachuas?


for my micros I do 50% weekly water change...I use a week old aged tapwater..in a 120 gallon tank
 
i do abt 80% water change with aged water once a week, it it too much?

anyways, does often water changes make them grow faster?
cos i change the water because after feeding them blood worms and live fish, the water is quite dirty, therefore the often water change for me.
 
i very sometimes. i change 20% once a week and sometimes i change small amounts everyday. like 5%

In my expeirence channa's are pretty tolerant to sh*tty water. But i wouldn't use that as excuse not to change water
 
Channa species are very tough and will tolerate alkaline waters as well as an acidic pH value. Snakeheads will also survive quite poor water quality, but a better water quality is naturally preferred (it can cloud there eyes). Snakeheads are generally very undemanding fishes but other problems can arise through bad water I do 25% every week. when I had the red I did that twice a week.
 
hi i usually change about 30% a week but thats mainly because my channa melasoma( black snakehead) lives with 3 oscars and other messy fish and i dechlorinate all tapwater after it has passed through a nitragon unit and i have never had a problem
 
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