Pro Shrimp's comment: Scaper's Soil is a relatively new soil by the famous plant and nano aquarium specialists at Dennerle. It usually buffers the water around between pH 6 and 6.5. The soil will leach small amounts of ammonia and nitrite, which are not toxic to inhabitants at this low pH level. This helps to cycle new filters and gives living plants a real growth boost. After a while the soil will stop leaching ammonia. You can stock the tank within some days to a week. Please note: to guarantee a long lifetime of the substrate, active soils should always be used with reminieralised RO water rather than tap. Tap water, depending on hardness, will exhaust the substrate considerably sooner.
Active substrate for planted aquaria
