Loach23
Aquarium Advice Activist
Ok my tank has been up and running for almost 2 months and I have brown algea everywhere on the LR, sand, very little on the glass. In a 20g tank tall. I used all LR no base rock about 20-30lbs. I was using tap water no I just ordered a ro/di 100gpd portable unit for $70 on eBay didn't get it yet will this fix my problem. And how long? And do I do a very large water change with ro water when I get the unit?