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06/04/2020, 04:23 AM | #1 |
Registered Member
Join Date: Jun 2006
Location: Crivitz Wi
Posts: 754
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Chaeto Observation
Hello all.
I just wanted to post an observation on my Chaeto and see if anyone else has ever had this happen. I never had problems growing Chaeto. It grew like weeds and I was harvesting at least once a week. My PO4 was higher then I liked .08 so I started running GFO. I started to notice my Chaeto turning brown and dying back. I noted that my PO4 after running the GFO was down to .01. It appears in the last few days the Chaeto is starting to make a come back. Still brown but less so and starting to grow again. I tested P04 again and I am now at .04 as the GFO has probably exhausted as it has been in roughly 3 weeks or so. Has anyone else seen this happen to their Chaeto when running ultra low PO4 or is this just coincidence? I am going to hold off on changing out the GFO and give the Chaeto more time and see if it makes a solid come back as long my PO4 doesn't rise much more. Also for the record my Nitrates are undetectable or very low as they don't register on the test kit. |
06/04/2020, 08:11 AM | #2 |
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Join Date: Nov 2002
Location: Miller Place, NY
Posts: 7,206
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More or less a normal situation when using both.
You could try GFO @ a reduced portion.
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250 gallon mixed reef, 2 Reefbreeder's Photon V 2, Deepwater BLDC 12, DAS EX-3 Skimmer, MTC mini cal, 2-3/4" Sea Swirls, Aquacontroller & 6 Tunze pumps. |
06/04/2020, 04:59 PM | #3 |
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Join Date: Feb 2004
Location: Boulder, CO
Posts: 5,807
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The GFO is likely outcompeting the chaeto for phosphate. I'd just use one - chaeto. Keep GFO on hand for emergencies.
You can reduce the size of the chaeto if nutrients are too low, essentially giving you a smaller mouth to feed. When it melts down it's dumping those nutrients back into the tank.
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As many naturalists and environmentalists have suggested, we should set aside our arrogance, our desire to conquer and control everything, and walk hand in hand with Mother Nature. -Walter Adey Current Tank Info: 180g Seagrass Sandbar Lagoon, START DATE November 28, 2018 |
06/04/2020, 07:25 PM | #4 |
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Join Date: Feb 2003
Location: Northern VA
Posts: 17,691
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Tight balance. How big is your tank, sump, refugium? Running gfo and a refugium can get tricky, also why are you doing gfo in addition to the fuge?
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06/05/2020, 08:55 PM | #5 |
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Join Date: Jun 2006
Location: Crivitz Wi
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Not a very big fuge. PO4 was creeping up higher then I like so I ran some GFO. PO4 went from like .08 to .01. I felt it better to get the PO4 down but the Chaeto it appears took the hit. It's coming back now. PO4 is at .04 now. I can live with that if I can keep it there.
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