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Old 11-04-2011, 03:05 AM   #1
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Water changes needed or not?

Ok, I am stumped.. If my water parameters are next to perfect (0 amonia, 0 nitrites, 0 nitrates) then how often do I need water changes? I test the water and it kinda amazes me that the water is doing so well.. But I do have alot of live rock... Anyways, how often should I water change if all looks well?
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Old 11-04-2011, 03:16 AM   #2
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I do a 30% every sunday! My water is perfect too, but you have to make a routine of it or els you will slack off and never do it! (i learned this the hard way)
Some people get away with twice a month, but its not worth the risk!
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Old 11-04-2011, 03:17 AM   #3
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How long have u been cycling the tank?
Maybe it hasent spiked yet
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Old 11-04-2011, 04:38 AM   #4
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The number and volume of PWC's is different for every tank. It all depends on the bioload you have. Some people need to do say weekly 30% PWC's while others with a smaller bioload can get away with 20% every other week (just example numbers). Water changes also do more than keep your nitrates in check, they replenish the trace elements that your reef needs to thrive. Again, this is dependant on your tanks inhabitants. A tank loaded with sps corals needs much more calcium and other trace elements than say a tank with a few mushrooms and softies. Figure out what you plan to have in your tank, test the water and make a PWC schedule that works for what you have.
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Old 11-04-2011, 10:17 AM   #5
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Originally Posted by BallinCrew10 View Post
The number and volume of PWC's is different for every tank. It all depends on the bioload you have. Some people need to do say weekly 30% PWC's while others with a smaller bioload can get away with 20% every other week (just example numbers). Water changes also do more than keep your nitrates in check, they replenish the trace elements that your reef needs to thrive. Again, this is dependant on your tanks inhabitants. A tank loaded with sps corals needs much more calcium and other trace elements than say a tank with a few mushrooms and softies. Figure out what you plan to have in your tank, test the water and make a PWC schedule that works for what you have.

+1 Pretty much what I would have said! LOL

All depends on the tank and its creatures and the water quality. I wouldnt go too long between changes though as you want the trace elements to be at an acceptable level always. I have rotated my water change schedule based on how the tank is doing and how the water parameters look. Even with 0 nitrates I still do water changes, but a little less frequently.
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Old 11-04-2011, 10:24 AM   #6
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Originally Posted by Nu-Nu the eel
I do a 30% every sunday! My water is perfect too, but you have to make a routine of it or els you will slack off and never do it! (i learned this the hard way)
Some people get away with twice a month, but its not worth the risk!
That's pretty much my routine also. Sunday is water change day, laundry and house cleaning. I feel like Mr. Mom!!
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Old 11-04-2011, 10:49 AM   #7
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That's pretty much my routine also. Sunday is water change day, laundry and house cleaning. I feel like Mr. Mom!!
Hahaha ya sunday is "clean the fish tank" day.. I dread sundays.. Jk
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Old 11-04-2011, 10:54 AM   #8
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Sticking to a minimum routine will help prevent problems. No matter how immaculate the numbers read you have to prevent, not treat. This routine is what will keep the numbers perfect.
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Old 11-04-2011, 05:36 PM   #9
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Don't try to do it all in one day. I have a 30 reef and a 40 fresh. Saturday I replace the sponge in my overflow, change out the sock for the sump, clean the skimmer cup and the inside of the tank. On Sunday, all I have to do is the WC. Of course I spend some time checking my replacement water's SG to make sure it's correct since I make 20 gallon batches which typically last me a month.
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Old 11-04-2011, 09:23 PM   #10
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My tank is a 90 gallon. It is about 2 months old, done cycling. I have 5 shrimp, 8 small crabs, 5-7 snails, 2 small clown ls, 2 fire fish and a small angel.
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