Recreate the soft, acidic water discus love.Discus and other soft-water fish need low pH and low hardness to thrive and breed — conditions most tap water can't provide.Seachem Discus Buffer lowers pH and keeps it low while softening water by precipitating calcium and magnesium — replicating the ideal discus environment. Pair with Discus Trace to restore trace elements and NutriDiet Discus Flakes for thriving fish.Seachem Laboratories has been a chemistry-driven company since 1979, developing its treatments in-house in Madison, Georgia. Discus Buffer is engineered as part of a system: its chemists designed it to work with Neutral Regulator so you can target and hold a precise low pH, and with Discus Trace and NutriDiet Discus Flakes for a complete discus regimen. Use 1 tsp (5 g) per 40–80 L (10–20 gallons) daily until the target pH is reached. Then use monthly or with water changes to maintain pH. Combine with Neutral Regulator to hit a precise pH. Give discus their natural water. Add to cart.Why Seachem Discus Buffer Purpose-built for discus: lowers and holds a low pH while softening water by precipitating calcium and magnesium, replicating the soft, acidic habitat discus need. Concentrated dosing: 1 tsp (5 g) treats 40–80 L (10–20 US gallons), then only monthly or with water changes to maintain pH. Softens as it acidifies: tackles both pH and hardness together, the two conditions that matter most for discus health and breeding. Built to work as a system: pairs with Neutral Regulator to target a precise pH and with Discus Trace and NutriDiet Discus Flakes for a full regimen. Best ForDiscus and other soft-water, low-pH fish — recreating and maintaining a soft, acidic habitat for everyday keeping and breeding.What It DoesLowers and maintains a low pH and softens water (precipitates calcium and magnesium) to replicate the ideal discus habitat. Contains phosphate buffers and conditioning agents. Safe for freshwater fish acclimated to acidic pH.DirectionsUse 1 level teaspoon (5 g) per 40–80 L (10–20 US gallons) daily until the intended pH is reached; thereafter use monthly or with water changes to maintain pH. To raise pH, use Neutral Regulator; to target a specific pH, combine the two following Seachem's ratio chart (assumes unbuffered RO/DI water). Dechlorinate tap water with Prime before water changes.Available Sizes50 g, 250 g, 500 g, 1 kg, 4 kgFAQHow do I combine Discus Buffer with Neutral Regulator to target a pH?Use the two together following Seachem's ratio chart in unbuffered RO/DI water: more Discus Buffer relative to Neutral Regulator gives a lower target pH, while more Neutral Regulator raises it toward 7.0.Does Discus Buffer soften the water too?Yes. As well as lowering pH, it softens water by precipitating calcium and magnesium, recreating the soft, acidic conditions discus prefer.Do I still need to condition my tap water?Yes. Dechlorinate tap water with Prime before water changes; Discus Buffer sets the pH and hardness but does not remove chlorine or chloramine.