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Old 08-22-2012, 08:55 AM   #1
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Micro bubbles and cyano :(

I'm having a right nightmare with my tank at the moment. I've always had a micro bubble problem with my deltec mce 600 which I've tried different things to solve with no joy and now a cyano outbreak which makes me just want to cry :'-( I've just spent £££'s to try and cure it but it just seems like I'm always cleaning it up only for it to return the next morning. My heart sinks every time. I don't want to purchase any other livestock with the tank in this condition and I only have a pair of clowns and about 10 hermit crabs to try and combat it although I understand I need an army of them.
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Old 08-22-2012, 10:30 AM   #2
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Cyano is more of a stage than anything. What are your levels at?? Im willing to bet atleast one of your levels are high which is causing the cyano. As for the microbubbles, could you give us some more detail on your setup? (tank size, sump?,no sump?, if yoi have one how many chambers with what in each?, etc) usually microbubbles are caused by running a skimmer too close to a return pump or allowing falling water to hit near the pump. We can def help ya through this
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Old 08-22-2012, 11:04 AM   #3
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Quote:
Originally Posted by Scottm84 View Post
I'm having a right nightmare with my tank at the moment. I've always had a micro bubble problem with my deltec mce 600 which I've tried different things to solve with no joy and now a cyano outbreak which makes me just want to cry :'-( I've just spent £££'s to try and cure it but it just seems like I'm always cleaning it up only for it to return the next morning. My heart sinks every time. I don't want to purchase any other livestock with the tank in this condition and I only have a pair of clowns and about 10 hermit crabs to try and combat it although I understand I need an army of them.
Cyano is cuase by excess nutrients, meaning nitrate and phosphate. So what are your nitrates and phosphates testing? how much are you feeding? what size tank? hermits will not fix the problem.
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Old 08-22-2012, 12:08 PM   #4
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Only nitrates are high, about 20ppm. Phosphates, ammonia and nitrite are zero. just seems like every time I a PCM they creep back up instead of going down. I use a canister filter so I'm guessing it's that but I have no room for a sump. Tank size is 180 litre. Water flow is at about 30-35x because I've just upgraded it. My bulbs have just been replaced too. 4 x t5s. 2 white 2 blue. They are all on together for 8hrs and the blues are on an extra 2 hrs either side of the 8. The micro bubbles are from the return hitting the surface but I've since dropped the return below the surface and they are still there
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Old 08-22-2012, 12:11 PM   #5
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I feed once every other day. Oh and my sand bed is only 1" max and I do vacuum it on water changes
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Old 08-22-2012, 12:29 PM   #6
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How often do you clean and change the media in the canister filter? Its likely contributing the problem if its under maintained. How much are you feeding every other day?

Likely any phosphates are bound up in the cyano. but 20ppm nitrates is more than enough to cause a cyano or other algae issue. Also you have additional nitrates bound up in the cyano itself. Large water changes and siphoning out the cyano will get your nitrates down and everything in check. Canister needs cleaned
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Old 08-22-2012, 12:42 PM   #7
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I clean the canister every week. I rinse the sponges in a bucket of tank water and dip the trays of bio media in and out of the bucket to clear any excess waste. The sponges get replaced every month and carbon is replaced when it's needed. I feed very little, quarter of a frozen cube if that
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Old 08-22-2012, 01:47 PM   #8
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I clean the canister every week. I rinse the sponges in a bucket of tank water and dip the trays of bio media in and out of the bucket to clear any excess waste. The sponges get replaced every month and carbon is replaced when it's needed. I feed very little, quarter of a frozen cube if that
Trays of biomedia? If you have live rock then the biomedia is doing more harm than good. Even with the washing your going to get nitrates. More frequent replacement of media au be needed. Weekly water changes? How much?
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Old 08-22-2012, 02:33 PM   #9
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10% weekly change. So my problem actually is the canister? I thought it could be. Do I just remove all bio media now and replace with what? Or is the canister actually needed at all? I do have about 25kg live rock in there
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Old 08-22-2012, 02:35 PM   #10
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Or not enough weekly water change? I use my own RO water but not RO/DI
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