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Old 09-28-2005, 11:13 AM   #21
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I use RO/DI water from my house. Filters are about 6 months old. I just changed them 6 months ago. I do have a little cyano on the sand. So if this is old tank syndrome what do i do.
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Old 09-28-2005, 12:47 PM   #22
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I don't like name dropping, but I will explain what I did. When I moved almost two years ago, I drained all the water and likely killed off a lot of my sandbed. I was left with a growing problem of cyano and mounds of hair algae. First, I made a skimmer and started running it 24/7. After getting that going, I bought 10lbs of Garf Grunge and added it. The combination removed extra nutrients and reseeded my sandbed to the point where at any moment I can get close to the sandbed and see a bunch of worms zigzag-ing through it. I believe any commercial detrivore kit would help.

The other idea is to remove/replace the sandbed which will start you out fresh again.

I would still check your source water, depending on the TDS going through 6 months could be time for a change again.
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Old 09-28-2005, 11:30 PM   #23
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Hair algae thrive on phosphates, test Po4, and make sure the tank doesn't get direct sunlight. I had a huge algae bloom because my tank got 16hrs of light a day, direct sunlight in the morning for six hrs and 10 hrs of MH lighting, but I remedied the problem now. Also invest in a DI unit, all you need to do is get one extra piece, it will greatly reduce the amount of time spent cleaning your tank.
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Old 09-29-2005, 09:48 AM   #24
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I have the DI as well. I mentioned that in an earlier post.
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Old 09-29-2005, 07:36 PM   #25
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I have a huge hair algea problem as well. No cyano though. I have tried everything short of using tweezers top pluck it out (which I will now try). I have tested all water sources, changed my MH bulb to a aqualine 10,000, incresed flow to 25X turnover per hour, added a wave maker, bought turbo snails and emerald crabs (no room for a tang only 40 gallons), running Phosban, and nothing has worked. Hair algea is completely covering all rocks and some of my corals and is starting to cover my crocea clam. I never had a problem until this past summer and this is just so discouraging.
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Old 09-30-2005, 03:38 AM   #26
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mrpope you might be overfeeding. What is your feeding schedule? Also how often and how much water are you changing on your pwc? Running small amounts of Phosban and changing it weekly works much better than using a lot more and changing it less frequently... If you are feeding freezed foods, give them a pre wash/soak in fresh RO/DI salt water from your water aging vats. Frozen foods may carry excessive amounts of PO4s.
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Old 10-15-2005, 06:13 PM   #27
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Have you changed brands of salt since all this started?
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Old 10-15-2005, 06:27 PM   #28
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It's important to keep in mind what feeds hair algae in order to control it - phosphates, nitrates, and lighting. Although some herbivores can help control it, corals do not tolerate high levels of phosphates. They can kill the symbiotic algae of the coral. Phosphates are in every living thing and one of the problems with testing is that we can only test for one type of phosphate. Also, if you have hair algae, you have high phosphates - no need to test. I'd research the root cause of the fuel and try your best to limit them. Some suggestions would be: be sure to use RO/DI or distilled water only, increase the amount and frequency you change water, turn up your skimmer so it produces a wet skimmate, ditch any flake or pellet food, reduce your feeding, rinse your frozen food really well with SW prior to feeding, reduce your lighting (even a few hours can make a big difference), and then as a last resort, put in a phosphate binder. Good luck!

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Old 10-15-2005, 08:24 PM   #29
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Your getting some good advice..... First you need to test the water in your tank and your top off for PO4 to see where the problem. If you getting PO4 from the top off then the DI resin is used up and time for new resin. If your tank only has PO4 then you know where you need to start.
Have you tested yet??? First step ...
Having 6 month old filters means nothing, My resin used to need to get replaced every 2 months.
Running a phosban reactor will help but you need to find the source also.
If your looking for the quick fix there really is none.
AZNO3 will kill it off over time, I know several people that have used it with great success. They did kill off a few critters when using it so be careful. I will Say they use it as a LAST resort.
TEST... TEStT for PO4
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Old 10-22-2005, 02:46 PM   #30
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You need to start running ozone or a UV sterilizer; very seldom do you see tanks running those items with algae problems. If that doesn’t take care of it replace the DSB either with a new one or BB.
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