Aquatic Plant Central - View Single Post - Black rust-like algae formation

hoppycalif · 02-14-2008, 05:27 PM

Iron doesn't cause algae, nor does phosphate. A lack of CO2 certainly encourages algae, and a too sparse plant density also encourages algae, plus, having too little water circulation in the tank causes local low CO2 concentrations which encourage algae. I suggest you get a drop checker so you can verify that you have enough CO2 in the water, and make sure you have enough water circulation that you can see every plant swaying in the flow.

02-14-2008, 05:27 PM	#8 (permalink)
hoppycalif Senior Member Join Date: Apr 2005 Location: Sacramento, CA, USA Posts: 5,208 iTrader Ratings: 20 iTrader Positive Rating: 100% Plant Points: 227345	Re: Black rust-like algae formation Iron doesn't cause algae, nor does phosphate. A lack of CO2 certainly encourages algae, and a too sparse plant density also encourages algae, plus, having too little water circulation in the tank causes local low CO2 concentrations which encourage algae. I suggest you get a drop checker so you can verify that you have enough CO2 in the water, and make sure you have enough water circulation that you can see every plant swaying in the flow.