Feeding Carbon To Plants Via Aquarium Carbon Or Ashes?

[Stan510]

I was wondering if you ground high grade carbon,or charcoal,or ashes. Would one or any be uptaken by plants in aquariums? At least with carbon powders....its going absorb toxins for a short while. But does it in fine powder dissolve? Eventually?
Calcium or Baking Soda also? DO they supply carbon to aquarium plants?

 

[EdWiser]

Solid forms of carbon can not be up take by plants. Plants on land and in water use the gas form of carbon dioxide.

 

[Stan510]

I guess. Funny that calcium/baking soda is said to have high carbon in it...but dissolved it too is out of reach?

 

[Stan510]

I was just wondering. I wish I could just delete the topic now that the answer is no.‍‍ I sense a dead end.

 

[EdWiser]

Always good to leave it for those who will ask the same question.