Check the listing for details. SEACHEM Discus Buffer 1 KILOGRAM ( 2.2 LB. ) Lower pH. Condition: New. Listed at 25.99 USD. SEACHEM Discus Buffer - 1 KILO Listing is for ( 1 ) : SEACHEM Discus Buffer - 1 KILO Discus Bufferª helps to replicate the ideal Discus environment (low pH & low GH (General Hardness)). Discus Bufferª will lower pH and keep it lowered. Discus Bufferª also softens water by precipitating calcium and magnesium. Use Discus Traceª to restore the proper level of trace elements required by thriving, healthy Discus. DIRECTIONS: Use 1 level teaspoon (7 g) for every 40 L (10 gallons*) daily until intended pH is reached. Thereafter, use once a month or with water changes as required to maintain pH. To raise pH, use Neutral Regulatorª. To target a particular pH use in combination with Neutral Regulatorª following the chart below. This chart assumes the use of unbuffered water (RO or DI). If water is already buffered use the chart as a starting guide. Use Primeª to dechlorinate tap water before doing a water change. (NeutReg:DiscBuf-pH) (1 : 1-6.8) (1 : 2-6.4) (1 : 3-6.2) (1 : 4-6.1) (1 : 6-6.0) (1 : 9-5.8) 1 kg / 2.2 lbs (Treats 12000 L (3175 US Gallons) Please feel free to contact me for International and combined auction shipping rates or with any questions or concerns that you may have about my products. Thank you !