Treefer32
Valuable Member
For the past 6 months to year my sand bed was covered in cyano. I used Chemiclean did the appropriate water changes, it'd go away for about a month then came back just as bad. I cleaned up my gyres and got them running better and still no changes in Cyano.
My LifeGard 120 Watt UV sterilizer (running at around 1200 gph for parasites through the sterilizer) started beeping. The countdown timer for the UV bulb hit 1 year, and beeped. So, rather than changing the bulb I turned the UV off for now until I replace the bulb.
My T5 HO bulbs are running on their 14th month. So, I'm a bit behind on replacing those too.
I still have the AI Hydra 52's (3 of them) running at full intensity. Other than a 30-40% reduction in T5 light, I don't know of any other changes. I reduced my calcium dosing due to an over dose (800 ppm of calcium) but it's down to around 440 now, and I've resumed dosing of calcium chloride, just lower doses for the time being to allow things to equalize.
My alk consumption is at its record consumption. I just hit 300 ml per day today. My alk had dropped to 7 dosing 264 ml per day. Plus 1.5 liters per day of kalkwasser.
All of that to say, filtration wise, I haven't changed anything, and noticed really clean smells coming from my tank (I posted about) about 3-4 weeks. The cleaner smells from the aquarium water are persistent. And now my sand bed is nearly bleach white. The cyano just died for unknown reasons over the last 2 weeks (Almost to the day since I shut my UV off).
Was my UV Sterilizer indirectly causing Cyano build up? How do I run UV and not have Cyano issues? Seems odd. But, I can't determine what else is the cause. Unless it's just the perfect storm. e.g. less calcium dosing, 1 water change, and lower intensity light? I just never thought my T5's make that much of a difference in cyano.
I still want to run the UV I'm just scared it's going to pluck reduce good bacteria and increase cyano again. Lol.
My LifeGard 120 Watt UV sterilizer (running at around 1200 gph for parasites through the sterilizer) started beeping. The countdown timer for the UV bulb hit 1 year, and beeped. So, rather than changing the bulb I turned the UV off for now until I replace the bulb.
My T5 HO bulbs are running on their 14th month. So, I'm a bit behind on replacing those too.
I still have the AI Hydra 52's (3 of them) running at full intensity. Other than a 30-40% reduction in T5 light, I don't know of any other changes. I reduced my calcium dosing due to an over dose (800 ppm of calcium) but it's down to around 440 now, and I've resumed dosing of calcium chloride, just lower doses for the time being to allow things to equalize.
My alk consumption is at its record consumption. I just hit 300 ml per day today. My alk had dropped to 7 dosing 264 ml per day. Plus 1.5 liters per day of kalkwasser.
All of that to say, filtration wise, I haven't changed anything, and noticed really clean smells coming from my tank (I posted about) about 3-4 weeks. The cleaner smells from the aquarium water are persistent. And now my sand bed is nearly bleach white. The cyano just died for unknown reasons over the last 2 weeks (Almost to the day since I shut my UV off).
Was my UV Sterilizer indirectly causing Cyano build up? How do I run UV and not have Cyano issues? Seems odd. But, I can't determine what else is the cause. Unless it's just the perfect storm. e.g. less calcium dosing, 1 water change, and lower intensity light? I just never thought my T5's make that much of a difference in cyano.
I still want to run the UV I'm just scared it's going to pluck reduce good bacteria and increase cyano again. Lol.
