Thirdfloor
Fish Crazy
On Thursday my friend and I are going to change the substrate in his tank. He currenly has some wretched looking red, white and blue gravel that he inhereted with the tank. We are switching to a natural looking gravel of the same size. Is there anything we should be aware of or any helpful pointers for a substrate change? Most of the beneficial bacteria are in the filter so it shouldnt have much effect on the tank, right? We are going to wash the new gravel with water from the tank before making the switch.