How long until Chaeto starts to grow?

i_declare_bankruptcy

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I’m in a weird spot. Had pretty bad GHA outbreak that I’ve knocked back. I actually could not keep it in control; I was up to the morning hours many nights scrubbing rock and netting it out. Lost some SPS because of it choking them out. Out of desperation I dosed fluconazole. Into week 3 and the growth has really slowed down and is much more manageable. I did notice my corals slowed their big 3 demand considerably; likely due to the nutrient constraint. I figured this would be a good time to introduce a fuge as the chaeto would actually have a chance at competing with the GHA. From my research, the fluconazole should not affect the chaeto. I purchased an H160, created an egg crate fuge in my sump, and have it running 12hrs opposite my lights, max intensity, and pinkish color.

I’m on day 4 and haven’t really noticed any growth. I was wondering if there is an acclimation period before it starts growing, just like with corals?

Also, interesting note: my NO3 and PO4 levels have pretty much never tested above 0-0.5 and 0-0.o1, respectively, during any stage of my 8 month old tank’s lifespan. I remember one time my NO3 registering as a solid 1 and celebrating lol. Before, during, and after mitigation of the GHA never really had an impact. I started the fuge thinking the chaeto may be able to help, but this could be a limiting factor as well (though if there was ammonia in the water, could the chaeto feed off that as well).
 
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It takes time. Mine didn't seem to grow for a couple of months then it started getting darker green and growing like crazy. I trim it once a month or it overgrows it's space. I do dose iron once a week.
 
Agreed, I don’t know about fluconazole, but my Chaetomorpha took a good 2 months to start growing, it is now growing very well.
 
Usually it takes off with better flow and iron dosing. I dose iron sulphate or iron gluconate pills. I crush it up and dose it. Helps a lot with growth.
 

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