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#1
09-01-2015, 01:50 PM
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So plug it back in and see what happens?
It's always been recommended to not use UV during any type of carbon dosing because the UV kills the bacteria which causes them to release the N and P in their cells back into the water rather than the bacteria being skimmed out alive by your skimmer. You have the biopellet effluent going into the Intake of your skimmer, right? 
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#2
09-01-2015, 02:14 PM
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1. Thought of that, then thought it was a bad idea
2. Didn't know that 3. More or less. Anywho, the tank seems to be recovering nicely, PO4 and NO3 within SPS growing range, so hopefully I can pull this thing together.
__________________
Brad
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#5
09-01-2015, 09:18 PM
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I've gone through a similar situation as well, I started my tank using Prodibio but made the switch to biopellets when the prodibio couldn't handle the nitrates as I stock quite heavily. I waited the 6 to 8 weeks for the biopellets to kick in and it brought down the nitrates to 0 and kept it there, at this time I decided to run a UV terilizer 24/7 as well to help increase the redox as well as keep minor diseases at bay. While running the already established biopellets and Uv all day long, i had great success at keeping both my nitrates and phosphates at 0. However as the biopellets slowly depleted my nitrates have since risen back up, so I topped up my biopellets while still continuously running the uv 24/7. This is where I'm in the same boat as you, my nitrates have yet to drop and the topped up biopellets have been active for several weeks. I'm going to be un hooking my uv sterilizer later today to see if this will help kick start these new biopellets, then I'll continue to run my uv. I'll report back once I give it some time to kick in.
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#6
09-01-2015, 11:37 PM
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I really didn't even want UV, but someone gave me a unit and figured what the hell. in hindsight, probably not a great plan. I saw no benefit and if it's the cause of 5 months of grief, well, I might smash it a little bit
__________________
Brad
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#7
09-03-2015, 03:56 AM
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Crazy. I just went through the same thing. I was dosing vinegar and began running uv... Just because I had a uv light... Cyano showed up and was getting quite bad. Took away uv... cyano has been steadily decreasing and breaking down. Thick gunk in my skimmer again too.
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300 Gal 6x3x28 high Starphire peninsula w/external herbie/bean animal hybrid +150 Gal custom sump with 30gal fuge section, (both built by Concept Aquariums Calgary), 3x Ecotech Radion xr30w g2's(soon to be G3 Pros), Jebao DCT 12000 return pump, 2x Jebao RW 20 powerheads, Tunze Ato, Vertex ro/di, Reef Octopus Ext 200 skimmer run internally.
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