jlindseyjr
Aquarium Advice Regular
Can plain old glass marbles be used as a substrate and has anyone here done it?
Killer_Instinct said:Substrate??
The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.
substrate
SYLLABICATION: sub·strate
PRONUNCIATION: sbstrt
NOUN: 1. The material or substance on which an enzyme acts. 2. Biology A surface on which an organism grows or is attached. 3. An underlying layer; a substratum. 4. Linguistics An indigenous language that contributes features to the language of an invading people who impose their language on the indigenous population.