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Bighauss
07/11/2009, 11:49 PM
my friend and I have post some questions about my tank. It is 75 gal and has a skimmer, sump and refugium. My water is merky with a green hue and has been for almost 2 weeks. I use RO water and the system has been running since the first of april. I have tried carbon and phosguard with little effect. I covered with no light for two days and that helped a lot, but when I ran my lights the tank began getting worse again. Any suggestions?
Flipper62
07/11/2009, 11:55 PM
Are you using just RO water ? OR RO/DI water

RO/DI water is really what you need to use for a reef tank. You want the 0.0 TDS. You will only get this if you have a DI unit.
jer77
07/11/2009, 11:56 PM
What is in the tank? Have you cycled it with rock?
Bighauss
07/12/2009, 12:03 AM
i am using ro/di water and my rock has been cycled I have a couple of fish, anenomes, crabs, and snails I think my clurpa turned sexual so I took it out but I still have chateo
jer77
07/12/2009, 12:15 AM
So its not the caulerpa then??

What are your water parameters?
Bighauss
07/12/2009, 12:18 AM
nitrates about 5, nitrites 0 ammonia 0 and phosphate0
jer77
07/12/2009, 12:54 AM
Maybe its just going through a microalgae outbreak, combined with the dying caulerpa. So you can't tell where its coming from? Does anything have algae growing on it, rocks, sand, glass?
Bighauss
07/12/2009, 12:59 AM
no hair algae or anything like that the sand has had a little bit of green tint in some areas
jer77
07/12/2009, 01:09 AM
Well if nothings really hurting anything then I would just say to wait a little longer to see what happens. It will probably go away.
jener8tionx
07/12/2009, 08:09 AM
My QT Tank did this after brine shrimp were fed with shells:

http://debriyn.com/images/green-water.jpg

I fought with it for weeks doing water changes (10-50%) and using algea removal products. Eventually I took all the livestock out in 5gal buckets with tank water and emptied the tanks and wiped it down and refilled it with RO/DI. Then moved the livestock back into the tank. Essentially, a 100% water change.

Here it is a while later: (Everything did just fine)

http://debriyn.com/images/clear-water2.jpg
Bighauss
07/12/2009, 09:37 AM
my friend thought that it might be a bacteria any ideas or suggestions