Originally Posted by SilverWolf
Ok, before I attempt this I want to make sure I'm understanding this right!
I put soil in first after picking out the big 'stuff';
Then I put sand on top of that?
How do I keep the two from mixing when I start adding water????
I place my soil-then I wet it slightly-then I place my sand-then I add water carefully so not to disturb the soil/sand layer-then I drain-then plant and refill
Orange-the white balls are most likely perilite or vermiculite(spelling) and will not hurt anything, however, they can get into the water column and be sucked into the filter-with that said, the few tank I used soil that has that in it has never caused any problems-It looks ugly and I have to fish it out every time I plant or pull a plant-since it usually will float.