Re: Phosphate-based buffers and planted tanks
Discus Buffer and Neutral Regulator are not recommended b/c both contain phosphate . Phosphate can promote unwanted algae growth. If you are looking to maintain a pH of 6.6, you could try Acid Buffer http://www.seachem.com/products/product_pages/AcidBuffer.html and Alkaline Buffer http://www.seachem.com/products/product_pages/AlkalineBuffer.html. Both come in a liquid and dry version. Neither of these buffers contain phosphate and should help you obtain the desired pH 6.6 used accordingly.