acroholicreefer
New member
I have been battling cyano for a while now, ever since my tank was set up. I'm running a new system that was first started in July 2013. Around early October I started to aggressively try to get rid of this cyano. At first, I did a lights out for 5 days. This reduced the cyano to almost nothing but it immediately came back. Ever since then, I have tried numerous things to eliminate this algae. Here is what I have done:
- Switched from LED back to MH (250w SE)
- Consistently done water changes bi weekly (approx 35%)
- Gone through two periods of Lights out for 4 consistent days. Once in mid October and another time in Late December
- Gutted the RO/DI unit and replaced all filters, DI resin, and membrane
- Siphon as much algae out as possible during water changes but it grows back a couple of days later.
- Purchased 2 mexican turbo snails and 1 urchin to try to control algae
- Running GAC and GFO 24/7, phosphates are down to .04, checked with Hanna
- Added a ball of Chaeto to the fuge to control phosphates.
- Wet skimming with an oversized skimmer. Reef Octopus SCC 3000i
I'm starting to get more aggressive with this now. This past Saturday I doubled the GAC and GFO and now the phosphates are undetectable. Although I believe this is helping some with the cyano, I feel that this is coming at the cost of the health of my sps corals. 1 Maricultured acro that was been growing with polyp extension now doesn't have any polyps showing. Same thing with a montipora that was growing well too. I don't believe that I can successfuly run this much GFO in my system.
I also want to note that I have had several tanks over the years with 10+ years of experience in the hobby. This is by far the worst cyano that I have ever had. Here is a link to a thread in the Reef Chemistry forum. I originally thought it might be turf algae since I have never seen "red slime" this purple before but I am certain that it is cyano.
http://reefcentral.com/forums/showthread.php?t=2339956
I'm at the last resort. I cannot decide if I should use chemiclean. After doing some research, it appears that some have good results with this and some do not. What should I do? Should I let this thing ride and hope that in 6 months it will go away on its own? Or should I use chemiclean?



- Switched from LED back to MH (250w SE)
- Consistently done water changes bi weekly (approx 35%)
- Gone through two periods of Lights out for 4 consistent days. Once in mid October and another time in Late December
- Gutted the RO/DI unit and replaced all filters, DI resin, and membrane
- Siphon as much algae out as possible during water changes but it grows back a couple of days later.
- Purchased 2 mexican turbo snails and 1 urchin to try to control algae
- Running GAC and GFO 24/7, phosphates are down to .04, checked with Hanna
- Added a ball of Chaeto to the fuge to control phosphates.
- Wet skimming with an oversized skimmer. Reef Octopus SCC 3000i
I'm starting to get more aggressive with this now. This past Saturday I doubled the GAC and GFO and now the phosphates are undetectable. Although I believe this is helping some with the cyano, I feel that this is coming at the cost of the health of my sps corals. 1 Maricultured acro that was been growing with polyp extension now doesn't have any polyps showing. Same thing with a montipora that was growing well too. I don't believe that I can successfuly run this much GFO in my system.
I also want to note that I have had several tanks over the years with 10+ years of experience in the hobby. This is by far the worst cyano that I have ever had. Here is a link to a thread in the Reef Chemistry forum. I originally thought it might be turf algae since I have never seen "red slime" this purple before but I am certain that it is cyano.
http://reefcentral.com/forums/showthread.php?t=2339956
I'm at the last resort. I cannot decide if I should use chemiclean. After doing some research, it appears that some have good results with this and some do not. What should I do? Should I let this thing ride and hope that in 6 months it will go away on its own? Or should I use chemiclean?


