oh also i wanted to ask about if people use seachem's flourish and if it hurts frogs? because my frogs spend tons of time in the water and anything that goes through the substrate also goes in the water i wanted to see what others think about using it, I don't want to hurt the frogs.

also does anyone know the names of some semi submersible water plants that go ok in terrarium, Id like to plant out a little of the water area also.