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Originally Posted by digitalsteve
da!!!! my tank is going all to hell, i am doing a 75% water change
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That's a pretty large amount to change at one time. Are you sure that won't cause some problems?
40 - 50% is already a huge one.
Once I done a big water change on my 33 gallon reef and lost a bunch of livestock. I'm not sure if the water change caused it, or something else.
Now I only do 20 - 40 % at the most.
But I could very well be wrong on this one.
Good luck.
