lol, that bit in my signature wasn't directed specifically at you. It just becomes a little tiring trawling through thread after thread because of ambiguity in the thread title. Hopefully everyone will be specific with their thread titles, who knows? The Blue-green part was purely coincidence. I know a lot of people have trouble with it, myself included, so I used that as an example in the signature. If I've offended you, I hope you accept my sincere apology.
Alright, well I read your bit on the cyanobacteria, and ignoring everything else that you wrote, here's a question: Do you consider the spot over the patch of Blue-green algae as a place with poor water circulation? You said your nitrates were at 7 mg, which I take to mean mg/L, and areas of poor circulation will get less than that 7 mg/L of nitrate. For example, I had a BGA problem that went away overnight after I added a water pump to create more water movement.
Also, I havent used Aquasoil myself, but I'm pretty sure most people experienced with the substrate leave their tanks alone in terms of fertilization for a couple weeks. The reason they don't fertilize is that the substrate leaches all the nutrients the plants need into the water column. That said, a lot of people believe that an overabundance of nutrients will NOT cause an algae bloom, but my experiences say otherwise. *Shrug*
So try adding the extra circulation and see what happens. If that doesn't work, a 3 day black-out won't harm your plants but will subject the BGA to a very painful death (we can only hope). Afterwards, adding nitrate is supposed to be a good way to combat/prevent BGA, but I'm not sure if that would be effective in a newly established tank with Aquasoil.
Hope that helps and good luck with the BGA. |