Originally Posted by Blue Ridge Reef
It's a sharp musty smell, but smells are hard to explain. I had never heard that breathing it was hazardous! Going down a Google wormhole over that one for sure.
Interesting, I'll pay closer attention to tank odor. Off topic, but the only time any of my tanks give off a noticeable odor is when I feed my shrimp tanks GlasGarten ShrimpDinner, and it's bad. Smells like real nasty farts, no joke, and it lingers for several hours. Makes the tank room and half of the basement stink. No clue why, but it's the only food that does it and I'm breaking wafers into smaller pieces and distributing 1 or 1.5 wafer amongst the three tanks, so not a lot going in to cause such a stench! I'll sometimes go home and feed tanks on my lunch break, and I frequently have a lapse where I'll briefly forget where the smell is coming from when I get home several hours later from work. My son is normally with me when I get home after work, and he's normally first in the door and I'm a minute or so behind. He's been blamed a few times for the stench before I go "Oh yeah, shrimp tanks, sorry!"
Originally Posted by LuluCocoPopoRoro
I didnít notice a smell either. Iím a cook, so my scene of smell is kinda in tune. However, there really wasnít a lot. And it wasnít growing. For all I know, it could have already been dying off.
I honestly think the reason it showed up, was because I was switching to a co2 system, and ran into some bumps in the road. I believe that cause a slight imbalance.
It's very likely that the "bumps in the road" are what triggered it. Things get out of whack and the opportunists come charging in. One other thing to try is upping flow in the area where you see cyano, as I've heard this is very effective. That being said, the two places in my 10 gallon where cyano is, and spreading slowly, is in places with pretty good flow, so I'm not sure exactly how much flow you need. In my case, neither of the plants it's on are exactly healthy at the moment though, so I'm sure that's the primary factor in its success. One plant is doing some melting for some reason, the other just got moved from a spot where it was being shaded out and is trying to recover.
I just ran home for lunch and took a look at it, it's definitely not getting better, so I'll likely hit mine with some hydrogen peroxide this evening, give that a week to see if that's all that's needed, then hit it with Erythromycin if necessary.