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Old 04-10-2006, 02:38 PM   #11
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Adding Crushed coral to the substrate will become a problem in the long run by becoming a nitrate issue.

As far as the ph, you say you have a jbj nano cube, I am assuming it is covered? If it is, that could be a big part of the problem. Surface agitation is also something to consider. If the powerheads are placed low, there isnt alot of surface water movement. Water movement throughout the tank does not help the gas exchange, that takes place at the surface. I don't know if this describes your set up or not. If it does, then more agitation at the surface will increase your ph.
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Old 04-10-2006, 02:46 PM   #12
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I should have mentioned his other post (or he could have) and that L2’s ph problem wasn’t because of covering the tank causing the CO2 to rise and ph to fall.
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Old 04-10-2006, 03:02 PM   #13
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Yup, I have a JBJ Nano Cube but I keep the front of the canopy open and the return pump creates quite a bit of surface agitation seeing as I upgraded the pump. What about using a small fan to blow accross the surface?

Anyhow, my Alk is only 2.86 so I think I'm going to try using B-IONIC calcium buffer to get my Alk up slowly... So my pH will naturally rise. My pH will never rise if my Alk is so low...

http://www.marinedepot.com/md_viewIt...product=EV1111

What do you guys think?
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Old 04-10-2006, 07:20 PM   #14
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Quote:
Originally Posted by L2
What do you guys think?
Stop messing with the chemistry and start looking at ways to impove gas exchange in the tank. Until that's addressed, your pH will continue to be a problem. The fan is a good idea, just make sure it's pointed towards the opening you posted about earlier and watch the evap.

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Old 04-10-2006, 07:55 PM   #15
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Ok, but can someone explain to me how my Alk is supposed to go up by itself? A fan will effect the pH slightly but how do people get their Alkalinity where it should be? Right now mine is 2.86. It should be closer to 3.5... Something tells me that if I had a higher Alk I'd automatically have a higher pH. So how do people generally go about achieving that without any supplements?
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Old 04-10-2006, 08:16 PM   #16
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LOL.. chill!

You where asking about pH, not alkalinity. You cannot control the pH by increasing the alk anyway. All alkalinity does is help keep pH stable.

Buffers are used for alkainity when needed, of course. 2.86 mE/ql alk is not bad at all. 3.0-3.25 is actually the highest it needs to be, 3.5 is excessive.

To get from 2.86 to 3.0, you'll need about 1/8th of a teaspoon if that.

http://home.comcast.net/~jdieck1/chem_calc3.html

Cheers
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Old 04-10-2006, 08:22 PM   #17
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Wow!

That calculator is Awesome!!! Thanks!
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