A large tank (like a Wardian case that fern collectors use). It is filled with a bubbling orange liquid that is being "aerated" with a colorless and odorless gas.
A large tank (like a Wardian case that fern collectors use). It is filled with a bubbling orange liquid that is being "aerated" with a colorless and odorless gas.
A large tank (like a Wardian case that fern collectors use). It is filled with a bubbling orange liquid that is being "aerated" with a colorless and odorless gas.