i recently bought a used tank, it was originally a saltwater setup but i want to do freshwater. the tank came with everything, including sand (the guy sed it was live). is this sand safe for a freshwater setup?
are these critters really visible or do i need a keen eye. and would they still be alive? im guessin the tank wasnt in use for a few weeks no water or anythin. the guy gave it to me in buckets. i didnt see anythin movin around when i cleand it.