I'm going to change my 10 gallon moderately planted gravel from natural to black. Should I buy Eco-Complete - $18 for 20lbs or Estes' black gravel for $14 for 20lbs. Its not going to have any difficult to maintain plants. Javafern - attached to driftwood. Amazon Sword. Java moss - attached to driftwood. Duckweed - floating. And maybe some water sprite.- maybe... Would the gravel matter? Which should I go with?