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Old 06-03-2011, 10:33 PM   #1 
smellsfishie
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Frequent water changes

Can someone please explain how frequent 50% or 100% water changes HELP a sick betta? Is it just to keep Nitrites/Nitrates at bay? And when you make these changes, is it like a bandaid- quick with no notice? Or do you slowly acclimate to the new water?
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Old 06-04-2011, 04:10 AM   #2 
LeroyTheBetta
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IMO, I think the reason depends a little bit on WHY the betta is sick. For example, if your fish has ich, frequent water changes (daily, in this case, and gravel vac) will remove many of the ich parasites that are free-swimming as well as the cysts... which are replicating (before they burst and send out hundreds more) in the gravel. This will hasten the rate at which your fish will recover with your treatment, because you're removing what's making it sick.

And another thing is it removes the toxins in the water, therefore reducing stress on an already sick fish... and the toxins themselves may be a reason he's sick to begin with.

Everything I have read regarding illness & diseases has said that clean water will go a long way in helping your fish recover. Also, quite frequently I have seen that when you notice a change in the behaviour of your fish (ie. lethargic, won't eat, "spazzing out", etc.) the first course of action is to do a water change. "Shoot first, ask questions later."

Anyway, just my 2 cents. :)
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Old 06-04-2011, 04:41 AM   #3 
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Yeah I understand all that.. I would think, though, smaller frequent water changes would be less stressful on the fish, rather than say a 100% change. I was told by a man who runs a petstore that he doesn't acclimate his bettas to new water, either, just dumps them in and "shocks" them then does daily water changes of 100% to get them out of it... like HUH???? why??? I don't understand.
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Old 06-04-2011, 05:11 AM   #4 
LeroyTheBetta
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Quote:
Originally Posted by smellsfishie View Post
Yeah I understand all that.. I would think, though, smaller frequent water changes would be less stressful on the fish, rather than say a 100% change.
A few things....

First, just say that a water change in itself (regardless of the %) is stressful. IF this is true, then the fish will be stressed with each water change..... therefore, smaller frequent water changes would create stress for him more often. But, larger, more infrequent water changes would create stress less often. Fewer occurrances of stress = less stress overall. Just a theory.

On the other hand, IF there is more stress with a larger water change... and less stress with a smaller water change....... what's worse? One big dose of stress less often, or several smaller hits of stress more often?

So, is it the amount of times the fish is stressed, or the cumulative amount of stress? I don't know really.... I'm just posing ideas for anyone reading to consider.

Now, what I think is that depending on tank size and if it's cycled or not..... In an uncycled tank, YOU are the one that has to remove the toxins by physically removing the water and replacing with fresh. So, if you only do partial changes you are ALWAYS leaving behind some of the toxins. Then, until another wc, more toxins accumulate and add to this part you've left behind the first time..... and so on.

In a healthy cycled tank, you do a water change to remove the nitrates so that they don't become excessive. So, you can get away with smaller or less frequent water changes.

So, regardless of if it's the amount of times a fish is stressed, or if it's the cumulative amount of stress, you still need to do 100% changes in an uncycled tank.

In a cycled tank, I would think you do what stresses your fish less... fewer larger % changes, or more smaller % changes.

For me & my fish, 'd rather do a couple larger water changes as I think for him he's not too bothered by large changes... my 6.25 gal tank is cycled.

(sorry such a long post)

JMHO

Last edited by LeroyTheBetta; 06-04-2011 at 05:15 AM.
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