fed up with cyano!!!!

[robert]

I thought BlueVet contained Erythomycin which is also used to control/eradicate cyano. I would strongly discourage any systemic antibiotic use - but while I'm not keen on using anything without knowing whats in it, I've used chemi-clean many times with pretty good results. Sorry for giving out bad info regarding the BlueVet product and thanks for the correction.

Matt, I'm glad you enjoyed the post. Here's something to really scare you! The ultimate nitrogen limited symbiotic nightmare: Aquarium Invertebrates: Aiptasia, dinoflagellate algae and cyanobacteria - a three-way symbiosis? — Advanced Aquarist | Aquarist Magazine and Blog
Makes you never want to do water changes again - lol.

 

[turok]

it's been a 3 months...
I get a little cyano once in a while now.
I have only changed 20gal of water once in 3 months.
I had 2 skimmers, only 1 now.
I took off the GFO, I cleaned it and never put it back on.
I only have 2 tangs, 2 clowns, and 3 sapphires. I have 2 barebottom frag tanks connected to the same sump, 120gal of water.
I have the EVO dimmable 150 and 200w leds. Blues are 100%, whites are... not.
I need a clean up crew to get rid of the red stringy algae now... seems like the blue crabs like to fight to the death, after they kill my snails.
I like to over feed, the polyps do like it dirty. I think I need more fish.

thx

I can try.

Its not only nutrient levels that lead to cyano, but perhaps more importantly, nutrient balance.
Water changes take out more nitrogen than phosphorous.
Cyano/dino has a competitive edge when nitrogen becomes the limiting nutrient in your system.
Even when both nitrate and phosphate "read 0" - The presence of cyano is a strong indicator that nitrogen has become the limiting nutrient in your system.
Even if both nitrate and phosphate are elevated above "ideal", the presence of cyano, particularly in high flow, indicates a nutrient imbalance.
In both cases, correcting the imbalance between nitrogen and phosphorous helps eliminate cyano by removing its competitive advantage.

Keep the GFO.
Either let you nitrate rise by being less aggressive with water changes, or through the addition of nitrogen to the system.