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Just brainstorming...I don't think the active part of chemiclean can be identified at least not with the current equipment I have.
Clumps a bitThe last pic kind of looks like diatoms, no? Does the mat just go to dust when disturbed?
Looks like diatoms. Do the mats dust when you disturb them or clump together?
Is it reddish purple or brown? Looks brown in the picture.Clumps a bit![]()
It's red... like a red brick. I just spot hit a area with h202 and turned flow off. The area is bubbling.Is it reddish purple or brown? Looks brown in the picture.
I don't think the active part of chemiclean can be identified at least not with the current equipment I have.

I wonder if you could just dose that?It is the antibiotic, erythromycin, if that is what you mean.![]()
Has that been confirmed? I could find nowhere definitive confirmation.It is the antibiotic, erythromycin, if that is what you mean.![]()
Yes, if you can get it from your veterinarian. I used to use it in my old tank to control cyano since I couldn't install a good skimmer in that setup.I wonder if you could just dose that?
Is it reef safe?Yes, if you can get it from your veterinarian. I used to use it in my old tank to control cyano since I couldn't install a good skimmer in that setup.
I never had any issues as long as you dose correctly and have plenty of aeration. You will need to remove any activated carbon so it doesn't remove the antibiotic from the water.Is it reef safe?
Whats the dosing ratio?I never had any issues as long as you dose correctly and have plenty of aeration. You will need to remove any activated carbon so it doesn't remove the antibiotic from the water.
I believe the API erythromycin product dosage is 200 mg per 10 gallons of water volume. I'm not sure you need that much for cyanobacteria since it seems to be particularly susceptible to erythromycin.Whats the dosing ratio?
Has that been confirmed? I could find nowhere definitive confirmation.
One quick question...do you have any sand-sifting gobies in your tank? When I added a yellowheaded sleeper goby to my tank, he kept the sand so stirred up that the diatoms and cyano didn't stand a chance. I'd try that before any antibiotics. Just a thought.Whats the dosing ratio?

