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Old 09-17-2008, 02:08 PM   #1
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Odd Situation - Most likely High PH

Ok, I havent posted on here in a while because my tank has been happy.

Here is the deal I have a 120 gal with a 30 sump. All the good stuff for it, phosban reactor, skimmer, etc.

Now I have a mix of soft corals and a bunch of fish, all my fish are fine.
However a couple of my zoas and my kenya tree are closed up. They were growing huge for a while.

Parameters:
As of 8:00pm last night
Nitrates 0
Nitrites 0
Phosphate 0
Calcium 520 (a little high)
PH 8.8 (I know its high)
Ammonia 0

Ok so I know there is a correlation between hair/bubble algae and a high PH because it eats the CO3 causing high PH.

I have hair algae/bubble algae from when my phosban reactor was done.

So to get the PH down and to get rid of the hair/bubble algae what do I do?

I can take the 160 lbs of rock out and clean them all
The phosphates are 0 now that the phosban reactor is good
I do my weekly 10 gallon water changes and bi weekly 20s so i will keep doing that.

Any other ideas? I need to save the corals!!!
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Old 09-18-2008, 02:02 AM   #2
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Pretty high calcium for just soft corals. Are you running a calcium reactor to get that high, or just supplementing? Also... what's your alkalinity?

Easiest way to get pH down is to just do some water changes.
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Old 09-18-2008, 08:42 AM   #3
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Yeah I know its pretty high calcium, but I think that goes hand in hand with the high PH. With again I think comes from the hair/bubble algae.

Any ideas how to attack the bubble/hair algae?

I am doing water changes every other day now until I can get it down, and the hair algae is slowly going away.

Im not dosing kalk or any supplements at all.
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Old 09-18-2008, 09:36 AM   #4
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Couple things don't really make sense to me here.
Quote:
Ok so I know there is a correlation between hair/bubble algae and a high PH because it eats the CO3 causing high PH.
??? Dunno what carbon trioxide (co3) has to do with anything. I never heard it referenced anywhere, and especially being a factor in a high pH situation. I suggest you read this article. CHEMISTRY AND THE AQUARIUM by RANDY HOLMES-FARLEY
Quote:
Yeah I know its pretty high calcium, but I think that goes hand in hand with the high PH. With again I think comes from the hair/bubble algae.
??? Read the article I linked to above.
Quote:
Any ideas how to attack the bubble/hair algae?
Nusiance algae is cause by high nutrients. If you see any nusiance algae and your test shows 0 phosphate, it does so because, a) the available phosphate in the tank is being used as food by the algae, b) the hobby grade kits we use aren't accurate enought to read low phosphate levels. If you have nusiance algae, you can be sure you have either high phosphate, high nitrates and/or a high concentration of dissolved organic compounds (DOC's).These are all algae foods.
Quote:
Im not dosing kalk or any supplements at all.
What kind of salt are you using that your ca is that high without any supplementation? What is your alk level? What is the pH of the fresh water you use for top offs and water changes?
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Old 09-18-2008, 12:30 PM   #5
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Originally Posted by Jayhawker518 View Post
Yeah I know its pretty high calcium, but I think that goes hand in hand with the high PH. With again I think comes from the hair/bubble algae.
You're right about the high pH with the high Ca - they often do go hand in hand. But the algae isn't causing it. The high pH isn't probably helping you rid yourself of the algae, but it isn't the cause - as cccapt mentioned.

I also am interested in how you're getting 520ppm Ca without supplementation. Are you using tap water to mix with the salt? Or RO/DI?
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Old 09-18-2008, 12:45 PM   #6
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Originally Posted by Jayhawker518 View Post
Any ideas how to attack the bubble/hair algae?
I`m glad you asked. Read this plan.

FantasyReef Databases-Viewing item "10 Step Plan for Nuisance Algae Control"
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Old 09-18-2008, 01:38 PM   #7
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Are you on well water?
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Old 09-18-2008, 02:59 PM   #8
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Ok lets see what I can respond to here.


Im not using RO/DI water that was the next planned step in my aquarium but I do use tap water, its not well water. I use reef crystals which I read are one of the only good ones.

I read the 10 steps to nuisance algae, ive done most of it.
I have a fuge skimmer phos reactor, i will now shut the lights off for a couple days maybe the weekend.

Will that effect my corals?

I guess my question is, do I take each piece of rock out and scrub it? Or hope it goes away? Thats alot of rock. I mean my clean up crew has been beating away at it but its all over.

Ill continue doing water changes each week.

Its been so long without any problems I guess I was really surprised and angry when this all came out of no where. (Well not no where it came because my phosban reactor was done)

The PH thing, i guess the water changes will help this? And go away over time, and I have to say i did read somewhere that the PH goes up because something to do with the algae eating something. Im to lazy to find it.
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Old 09-19-2008, 03:14 PM   #9
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Ok so my corals are starting to look a little better. I dont see any new hair algae growth and I have been doing my water changes.

This is great however, would there be any reason for me to take all the rocks out and clean them?
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Old 09-19-2008, 03:54 PM   #10
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I would take them out only as a last result. Removing algae takes patience and a little bit of work. I doubt I would personally do that myself just to remove algae.
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