Looks like a type of diatom or cyano. Tagging @tarichaHey @ScottB was hoping you could take a look at this and tell me what you think. I have been thinking that this is diatoms all along but starting to think it's something different. It coats things and will build up over time, brushes off and takes days to start back. If I dose vibrant it goes after it but always returns. I'm just trying to figure out what it is and what to do differently that can kick it to the curb but not sure what it really is. I know diatoms are fed by silica but I've had my RODI tested and its zero and have no sand (BB). Parameters are not to crazy, nitrates are 9 and phosphate are .03, I have it in both my frag tank and DT. It will irritate SPS that are having issues (see the pic), so I am not sure what it is or what I can do to move past this stuff.
Let me know if you have any thoughts...thanks.
I would pull back on Vibrant if your sticks are struggling. Not sure if you are following this thread, but you don't want (IMO) Vibrant to build up in your system too much if your seeing any coral stress.
My speculation: Vibrant has some fluconazole in it...
***** EDIT 5-December-2021***** My original speculation was inaccurate. However, it did prompt another hobbyist to run some tests similar to those published in this paper. https://pubmed.ncbi.nlm.nih.gov/33191523/ "This study investigates the utility of bromophenol blue (BPB) as a safe, rapid...
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