Substrate questions Hello,
I am planning to have a reasonably heavy planted tank, 4ftx1ftx2ft and am wondering about substrates.
The tank was originally a basic 2-4mm graded gravel with undergravel filter and community fish for a beginners hobby a few years back. Since then I have had a problem with aggressive fish and decided to redo the entire tank to something thats a challenge.
To move the tank I took most of the water out leaving some murky water with the gravel in and took out the UG filter.
I have filled this back up nearly full and am getting a lot of silt-like brown mass forming on top of the gravel when the water is settling.
My first question is, is this aged waste and fine-debris/silt any good for plants?
Second, is there any substrate that I can mix with the basic gravel to enhance the look and the nutrition (aiming for an acidic tank) or is this gravel bad for plants? |