I'm a bit worried that sand substrate would eventually become covered in algae after some time due to lack of oxygen in it.
i know i should move it a bit in order to pass water through it sometimes but i am concerned about the parts which i wont be able to reach, like under the rocks...
how do you guys manage to keep ur sand clean, if u have sand as a substrate in your tank?
i know i should move it a bit in order to pass water through it sometimes but i am concerned about the parts which i wont be able to reach, like under the rocks...
how do you guys manage to keep ur sand clean, if u have sand as a substrate in your tank?