So has anyone had any real success with?

Ok so so one week after blackout and 20 percent water change it did not grow back as bad but did pick up A little in new areas so did another 20 percent water change. I turkey basted rocks and siphoned sand thoroughly. Also. changed direction of one pump to get more back of tank. Now hopefully I will see some moe improvement. Question though. I have 3 korilia pumps for my 70 gallon. ( the 1050, the 850 and 475 something like those numbers). Do you think I should add more flow? My return probably adds a little more

 

Are those numbers the GPH for circulation? If so that is 33x your dt size which is pretty good. I have issues with cyano in my tank, which has much more flow but it still grows in "dead spots" where the PHs aren't facing, corners, crevices, other places blocked by rockwork. Is that where the new spots are popping up?

 

yes those numbers are GPH. the new areas are all still on sand but yes more so in crevasses and corners. I didn't think flow was my issue because originally it was growing in areas of higher flow but it is all in the higher light areas so not sure. I did point one of my pumps to circulate around back where it is shaded but may be accumulating the phosphate nitrate and just growing with the light source in the front. Just trying to adjust things. Thanks for all your advice.

 

For some reason I notice I occasionally get a patch of GHA (green hair algae) right on the tip of my powerheads, probably the most high flow spot in the tank. However never cyano.

Personally 33X turnover is on the low side, I would go for at least 50X turnover, it will make a difference getting rid of the algae, and your corals will probably like the extra flow (depending on what corals you keep). As mdbostwick said, even with more flow, you'll still have dead spots, try to create these dead spots in areas that are easy to reach for you (in order to siphon out the algae).

 

My tank has only been 'active " since mid March.. so like all new tanks I have gone through various cycles of "misery".. although minimally
minor compared to most... I never really experienced diatoms.. but red slime and hair algae both made an appearance....knowing that it was an nutrient issue ( I use r/o/d/I water and phose ban) I figures it was leaching from my rocks.. I cut the light cycle to 8 hours a day.. cut fish feeding to once a day.. and only as much as the readily take.. 10% water changes upped to %30 a tooth brush and bottle brush used to clean the hair algae a
detritus vacuum and turkey baster were used to clean the gravel of the red slime and left over organics... at first it was daily.. the every few days... now I only get a spot here and there... time and vigilance was my friend... I hope this helps...

 

It sounds like you need some GFO. chemi pure elite contains GFO but it sounds like you just have the regular chemi pure. I would invest in some GFO if you are running a macro algae sump. I would also increase your flow. Flow has a huge impact on cyano. If you are using kalkwasser in a drip I would add some vinegar to it about 45ml per gallon. This will add some carbon source and could help bring down your po4 a bit. If you are using LED's intensity alone can cause cyano reducing your intensity can make the cyano go away. Stick to a bluer spectrum. The lower kelvin ratings and old or cheap bulbs can sometimes give off a more yellowish appearance and give you problems.

 

To give yo an update and thank you all for your advise. To my surprise and pleasantly shocked it looks like I am gaining the upper hand on the Cyano without The Red Slime Remover. Yes I was skeptical. It is not completely gone but definitely deminishng. It actually got much worse before it started getting better.After each water change and siphoning I was getting long strands and thicker mats on sand the next day. Now it is taking almost a week before getting any significant accumulation. In addition, not sure why but the strands started losing its reddish color and started turning a pale green. I was hoping that this was it just starting to die.I took many steps though to this point and not sure which one helped the most but I believe it was the thoroughly siphoning the sand which I believe accumulated the nutrients. I since have added a GFO reactor and wavemaker. Very similar to some of yor post above. The last thing I am working to hope knock it out is raising my Alkalinity. I THOUGHT that massive water changes would stabilize my alk so I did not test it for awhile but when I tested last week it was down to 5.6dkh and read that this may contribute. I am not sure what is sucking up my alk; my calcium stays around 400 to 420 Mag is always around 1350. I do not have any SPS I only have a couple LPS and snails (I did have a sudden snail die off in the middle of this and not sure why Alk or water change impact). However, I do have a pipe organ coral that I read grows slowly but notice it grew a good inch onto a touching rock. I have been dosing Red Sea foundation B to get it back up. However, in the past when I did this it always dropped again so I will probably need to start a Kalkwasser but thought I shouln't need this sinceno SPS and frequent water changes should be enough. Oh, sorry for the ramble just love this stuff. However, wife doesn't because using kids college money. lol

 

Sorry If I missed it, but your water source is free of stuff, like 0-2 TDS?

 

Yes. I have 6 month old RODI unit testing at 0 TDS

 

A week and a half ago I siphoned a good layer of sand from my tank which was mostly matted with cyano, This has drastically changed how well the cyano is being controlled so far. I am talking a HUGE difference for my tank.

I think you have something there thinking the sand is the culprit.