Thinking about using Black Sand

[Big_Pun]

Emily 20g tank has black sand, she got it at petco. think it's same sand your talking about. no problems what Sao ever with tank and it looks nice coral really pop with black background. she has a small twin spot goby and hectors and they sift sand just fine. it would seem fine enough for wrasses also, as her scooter blenny burros in it at night.