when shouldi fist change water in my tank

slowmo115

AC Members
Feb 11, 2007
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i just set up my 10 gallon tank about a week ago and i have four fish to start the cycle when should i first clean my tank/ change sum water
 
i have 2 bloodfin tetras a black skirt tetra and a white skirt tetra and i have a test kit for ammonia and im goin to buy one for nitrate and nitrite
 
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