SIZE OF SUBSTRATE: Substrates vary widely in terms of size - everything from sands consisting of very tiny particles to larger river rocks. Large particle substrates allow more uneaten food and waste to penetrate into it leading to toxic build ups...

SIZE OF SUBSTRATE: Substrates vary widely in terms of size - everything from sands consisting of very tiny particles to larger river rocks. Large particle substrates allow more uneaten food and waste to penetrate into it leading to toxic build ups...

SIZE OF SUBSTRATE: Substrates vary widely in terms of size - everything from sands consisting of very tiny particles to larger river rocks. Large particle substrates allow more uneaten food and waste to penetrate into it leading to toxic build ups...

SIZE OF SUBSTRATE: Substrates vary widely in terms of size - everything from sands consisting of very tiny particles to larger river rocks. Large particle substrates allow more uneaten food and waste to penetrate into it leading to toxic build ups...

Approximately 1/8"Color StableWill not effect PHColor deviations are possible due to typographical reasonsFor freshwater aquariums, terrariums, landscaping, vase filler for floral and candles, crafts, hobbies and all decorative...