Planted Tank Guru
Join Date: Dec 2002
Location: Portland Orygun
Nutrient deficiency, plants grown emersed adapting to submersed growth or snails are all possibilities. Some micro sword normally gets a brownish red tint, or it could be diatom algae.
Do you have nitrate and phosphate test kits? Are you dosing any plant foods? If so which ones, how often and how much? Do you have CO2?