marineland black diamond carbon

[Art13]

Is there any chance that running carbon or this specific brand could lead to a cyano outbreak?

 

[Drae]

That's decent carbon for sure. It would not cause cyano problems

 

[Art13]

i'm just wondering, i had the outbreak about the same time i started running it, i've been vacuuming the tank sand and rocks daily and doing a 5-10% water change but it keeps coming back, i only feed about a small amount once a day, nitrates are at about 2.5ppm, phosphate is the only thing thats high at about .25ppm or so, i'm having issues getting it down and was wondering if maybe the carbon was leaching some. i've been running rowaphos for a few days but the phosphate hasn't moved much.

 

[Drae]

Your phosphates are really high. Give the rowaphos some time to reduce them. Cyano can be caused by dead spots sometimes, how's your flow? In tank and sump turnover?

 

[Art13]

Flow is decent at best, I just ordered a new hydor pump to try and help out, should give my tank about a 30x turnover, and I have a led light to replace the 50/50s on the tank right now, hoping something will eventually give.

 

[smkooq]

I don't think i have ever heard of carbon ever leading to cyano. Organic carbon is a different entity in itself, and organic carbon should not be confused with the carbon element.

So you are fine using the Marineland or any other carbon in regards to cyano. Carbon dosing is another story.

 

[Art13]

I won't be dosing my tank until my phosphates are under control, last night i did pull out the carbon and i took the rowaphos and spread the bag out more and forced it to be the size of the container it was sitting in (i have a canister) to give it more contact. Within an hour it seemed i saw noticeable results, i will be testing my tank in about an hour to determine if the phosphates when down but it looked like the cyano was receding. I can only hope so as i would like to go back to once a week water changes and not daily ones.

 

[david_lee]

Ive been using black diamond carbon in a tlf reactor for over 2 yrs without any issues.

 

[Art13]

i don't think it was the carbon that i took out that is helping, i think its the fact that i spread the gfo out more to get more water contact.

 

[rhinonm]

i'm just wondering, i had the outbreak about the same time i started running it, i've been vacuuming the tank sand and rocks daily and doing a 5-10% water change but it keeps coming back, i only feed about a small amount once a day, nitrates are at about 2.5ppm, phosphate is the only thing thats high at about .25ppm or so, i'm having issues getting it down and was wondering if maybe the carbon was leaching some. i've been running rowaphos for a few days but the phosphate hasn't moved much.

What about your lights? Too much red/white will do it.

 

[Kdawg_69]

cyano has nothing to do with carbon or gfo for that matter silicates in the sand is what causes the cyano n the more u vacuum the sand the more silicates u will have in ur sand what u need to do is let ur tank go through the ugly stage for the first yr n then it will get better



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[Art13]

My lights are 50/50 10k/actinic, 2 months old, they shouldn't be the issue, i've been reading a lot online and from one persons experience, it can take up to a month for the rowaphos to get the phosphates down to 0 on a system that has already been set up for a while, i just need to give it time. I also did not know that about the sand, i appreciate that, i will not be touching it now, i installed the new circulation pump and i finally got the movement i wanted in the tank, should help. some of the cyano started peeling off the rocks and subtrate. It also kicked up a lot of crap laying in areas i could not clean, i think thats going to be a nice help in keeping the water parameters in a good place.