Originally Posted by 1077
Were this my tank, I would consider a good pruning of existing plant's to encourage new growth.
Have heard of antibiotic Erythromycin used to erradicate the Cyno but as I understand it also compromises the biological filter. I might be willing to try this as last resort .
1077- I did a HUGE pruning, enough so that what was once a heavily planted tank, now looks sparse. Anything that looked like cyano on the plants was removed. I don't have it in my substrate (yet) and scrubbed as much of it off the wood as I could. My anacharis also had cyano growing on it, so I pitched all of it but a few prime looking strands. I scrubbed off large portions that were on my driftwood with my fingernail and them sniffed it but I do not notice a bad smell. I've attached a pic, I'm sure that it is cyano but it doesn't "stink" at all to me. I'm highly sensitive to smells and from everything I've read it states that cyano is suppose to reek.
I will not use Erythro. This is my Discus tank and there is no how, no way, I will mess with the biological filter in this tank. I'm encouraged by Byron's report that it will come and go in stages. By removing all that I can, adding some new plants (to replace all that I've culled), and doing some large water changes in a row, I think I can do alot towards eliminating it.
Byron, incidentally I do have tons of crypts in this tank! After pruning they are down to just a few leaves. I will begin dosing with Flourish Comprehensive twice a week, instead of just weekly, and have already cut back my lighting schedule by two hours. Hopefully this will help to eradicate it. I've also added a new micron filter to help trap the loose cells of cyano that are floating, due to all my scrubbing of it.
Here's the pic, cyano for sure, right?? (The little white "things" in the pic are parts of the scrubber pad that were left behind)