Master Soil – Premium Japanese Aquarium Substrate for Plants and Shrimp Sizes:3L The integrated 300W heater is

The integrated 300W heater is sized for aquariums up to 300 litres under typical room temperature

At just 15 mm thick

adjustable flow

This enables finer color temperature adjustment and more natural-looking light

Master Soil – Premium Japanese Aquarium Substrate for Plants and Shrimp Sizes:3L The integrated 300W heater isMaster Soil Premium Japanese Aquarium Substrate for Plants and Shrimp Made in Japan Active Substrate Lowers pH GH KH Shrimp Safe 3L & 8L Master Soil is a Japanese active aquarium substrate for planted tanks and shrimp colonies. Instead of sitting inert under your hardscape, it works on your water chemistry from day one softening pH, GH and KH while feeding plant roots directly with fulvic acid, humic acid and bioavailable minerals. It's the substrate