Hello!
First let me say that this is a crazy hobby. I respect everyone who has a beautiful setup because this is really hard. I started cycling my 10 gallon nano around July/August of this year and I've been busy just troubleshooting problems. I'd love to add a clownfish eventually, but right now, I have a hermit crab and a GSP that are doing super well!
I have a bit of cyano problem that I need help with. I tried to clear them out via water changes but that didn't work so I dosed with chemiclean. It faded away for a few hours but came back worse at the 48 hour mark. I did a 40% water change and dosed chemiclean again and it's doing the best it has been, but not completely gone right now, which is around 40 hour mark post the second chemiclean dose. My water parameters are salinity 1.025, pH 8.2, ammonia 0.5ppm, nitrite 0ppm, nitrate 10.0ppm, calcium 440ppm, KH 143.2ppm, and phosphate 0.25ppm.
1. I've been siphoning out cyano from the sand but have been adding it back in after washing it. Is this contributing to more cyano? I didn't think that this would make that big of a difference because there is still a lot of cyano on the live rock that chemiclean didn't take care of. Also, I have been using RODI water, but maybe the tap water remaining on the sand after the wash might have enough chemicals to throw off the system?
2. How do you guys siphon out your sand? I find myself losing a lot of substrate after my weekly cleanings and am wondering if I should eventually add more live rock? I also only have a sand siphon with the filter. Can this be making my substrate cleaning less effective?
3. Should I adjust my light settings? Currently I'm using AI prime at 60% UV, 35% violet, 60% Royal, 60% Blue, 33% Green, 33% Red, 15% Moonlight and 15% White, which is what my LFS recommended. I am out of town for the next week, so I'm worried the cyano issue will get worse.
4. Can I add any livestock that can help with cyano? Also, my hermit crab poops so much. Can that be contributing to the increased nutrients, high nitrate, cyano, etc.?
5. I also recently bought Reef fusion 2 part. Could this help?
6. I've been aerating as much as I could after the chemiclean with my Aqueon mechanical filter at full flow and an air stone. I even took out the front flow portion of my filter so the flow would be stronger. Can removing the filter make this worse? Also, I don't have a skimmer or powerhead. Would any of these help with the cyano issue?
I've attached a picture. It actually doesn't look too bad since I turned the light off for the picture, but I'm just worried that I won't be around for a week to fix any issues that need to be fixed. Thank you for reading through this all, and I'd really appreciate any help. Thank you so much!!

First let me say that this is a crazy hobby. I respect everyone who has a beautiful setup because this is really hard. I started cycling my 10 gallon nano around July/August of this year and I've been busy just troubleshooting problems. I'd love to add a clownfish eventually, but right now, I have a hermit crab and a GSP that are doing super well!
I have a bit of cyano problem that I need help with. I tried to clear them out via water changes but that didn't work so I dosed with chemiclean. It faded away for a few hours but came back worse at the 48 hour mark. I did a 40% water change and dosed chemiclean again and it's doing the best it has been, but not completely gone right now, which is around 40 hour mark post the second chemiclean dose. My water parameters are salinity 1.025, pH 8.2, ammonia 0.5ppm, nitrite 0ppm, nitrate 10.0ppm, calcium 440ppm, KH 143.2ppm, and phosphate 0.25ppm.
1. I've been siphoning out cyano from the sand but have been adding it back in after washing it. Is this contributing to more cyano? I didn't think that this would make that big of a difference because there is still a lot of cyano on the live rock that chemiclean didn't take care of. Also, I have been using RODI water, but maybe the tap water remaining on the sand after the wash might have enough chemicals to throw off the system?
2. How do you guys siphon out your sand? I find myself losing a lot of substrate after my weekly cleanings and am wondering if I should eventually add more live rock? I also only have a sand siphon with the filter. Can this be making my substrate cleaning less effective?
3. Should I adjust my light settings? Currently I'm using AI prime at 60% UV, 35% violet, 60% Royal, 60% Blue, 33% Green, 33% Red, 15% Moonlight and 15% White, which is what my LFS recommended. I am out of town for the next week, so I'm worried the cyano issue will get worse.
4. Can I add any livestock that can help with cyano? Also, my hermit crab poops so much. Can that be contributing to the increased nutrients, high nitrate, cyano, etc.?
5. I also recently bought Reef fusion 2 part. Could this help?
6. I've been aerating as much as I could after the chemiclean with my Aqueon mechanical filter at full flow and an air stone. I even took out the front flow portion of my filter so the flow would be stronger. Can removing the filter make this worse? Also, I don't have a skimmer or powerhead. Would any of these help with the cyano issue?
I've attached a picture. It actually doesn't look too bad since I turned the light off for the picture, but I'm just worried that I won't be around for a week to fix any issues that need to be fixed. Thank you for reading through this all, and I'd really appreciate any help. Thank you so much!!

