I really want to create a steep slope in my tank but am finding it really difficult. I found using new aqua soil almost impossible so tried some old muddy stuff from another tank and lots of rocks. I can get it upto about 4'' at the highest part, but to get it any higher I need to make a rock fortress to hold the soil back. This doesn't leave much bare soil to plant on. Its so frustrating.
How do you guys do it?
How do you guys do it?