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You will need 5 or 6 radions you're looking at $4k. And of course you will run more electricity.
I have the ATI hybrid for 2 years now. I would buy the same light again. An 8 bulb fixture with 4 LED clusters cost $2400. Each cluster is equivalent to one radion xr15. You are getting the best of...
Agree on what everyone else suggested. If you do some kind of carbon dosing you do not need to change water too much. I change only 5% of the total volumn a week.
I've been wondering how high the temperature sps can handle, now I know, less than 82.7 degrees. I do have to keep the a/c on even when we are not home so jcp&l loves me too. I have a nice sized green slimer when you're ready. Let me know when you're in my area.