JP-79er
New Member
Hi....
In my tank i have a substrate of 1 1/2 - 2" of crushed coral which is the original substrate i placed in the tank nearly 4 years ago. Is there any benfits of adding new or changing a portion of it every now and again
or will this upset the blance in my tank..
In my tank i have a substrate of 1 1/2 - 2" of crushed coral which is the original substrate i placed in the tank nearly 4 years ago. Is there any benfits of adding new or changing a portion of it every now and again
or will this upset the blance in my tank..
