RO water became cloudy in the tank

[Bioguy7]

Hi, I am setting up a 135g tank. Just started filling in the RO water. I have an RO system in my kitchen but it makes only a couple of gallons per 4 hrs or so. So it took me three weeks to fill up the whole tank. Now the water in the tank is a bit cloudy. Is it OK or is something growing in the water? The water is stationary. No pump running, no movement. Any ideas whats going on?

[mcgyvr]

Its fine.. just get some circulation going in there to clear it up (powerhead,etc...)
Thats normal..

[Bioguy7]

Thanks for the reply. Will start the water pumping through the sump tomorrow.

[ROB2005]

Is it just an RO system or an RO/DI system? Nothing wrong with RO only systems, but a complete system will help polish the water to make it ultrapure for aquarium use.

[mann1139]

What is the temp of the rock water when you add it? A temperature differential can cause cloudiness as well.

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[Bioguy7]

Its only RO system. No DI. Is that OK? I plan to grow corals and fish.

I do not understand what rock water is.

[Green Chromis]

:fish1: If you want to grow corals, especially SPS corals you will need an RO/DI system for your tank. Some people claim you don't need the extra DI system on your RO, but I believe in the long run the purer your top off and make up water is, the easier it will be to maintain your system. I would also get a dedicated RO/DI system for you tank. :fish1:

[mann1139]

Its only RO system. No DI. Is that OK? I plan to grow corals and fish.

I do not understand what rock water is.

Sorry, 'RO' autocorrected to 'rock'.