I want to swap out my natural colored gravel for black sand for aesthetic reasons.
1. What's an inexpensive black sand I can use?
2. How can I avoid crashing my tank? Should I keep a stocking full of existing gravel in the tank while the sand becomes established?
Thanks
1. What's an inexpensive black sand I can use?
2. How can I avoid crashing my tank? Should I keep a stocking full of existing gravel in the tank while the sand becomes established?
Thanks