Over the years my tank has always had it in varying degrees. A week or two after an ethromyacin treatment it's back again. Attentive tank maintenance and frequent water changes haven't stopped it. In desperation I tore out all the plants, removed the 55w CF bulb and the co2, and put away all my fertilizers. I put a 17w light over my 29g tank and went fish only, along with rocks and driftwood. Disappointingly, the blue-green algae returned, as bad as ever.
I geared up for one more try and put in a new Aquasoil substrate and a few plants. Back came the 55w bulb, the co2, and the fertilizers. Since my tank gets a lot of ambient light, I split up the photoperiod into morning and evening times, thinking that maybe the combination of strong ambient daylight along with the tank light might have been the cause. Unfortunately, the algae, or cyanobacteria, returned and the tank just looks terrible. I hate to just give up on it, since a healthy planted tank can be so beautiful to look at, but at this point it seems like I might have to admit defeat and simply replace the tank with just a plant or something else to put in it's place. Before I do, I just want to give it one more try and attempt to gain an understanding of what's been going on. There must be something I've been missing, despite all of my efforts. Does anyone have an idea of what that might be and how I might proceed? Any and all replies appreciated. Thank you.
I geared up for one more try and put in a new Aquasoil substrate and a few plants. Back came the 55w bulb, the co2, and the fertilizers. Since my tank gets a lot of ambient light, I split up the photoperiod into morning and evening times, thinking that maybe the combination of strong ambient daylight along with the tank light might have been the cause. Unfortunately, the algae, or cyanobacteria, returned and the tank just looks terrible. I hate to just give up on it, since a healthy planted tank can be so beautiful to look at, but at this point it seems like I might have to admit defeat and simply replace the tank with just a plant or something else to put in it's place. Before I do, I just want to give it one more try and attempt to gain an understanding of what's been going on. There must be something I've been missing, despite all of my efforts. Does anyone have an idea of what that might be and how I might proceed? Any and all replies appreciated. Thank you.