Yes...Again im not suggesting dirting her tank, i suggested she read diane walstad to determine how to sustain a tank using plants without water changes.
Having said that ive dirted a tank it worked great the plants did well and while it can leach into water nutrients from root tabs can also leach into water. Like i said the biggest down fall to a dirted tank is one has to change out the substrate after a year or two.
So do you agree @Meg0000 should use a different substrate? (Ex. Play sand)