Can i put plants from the river contained by my fresh hose down reservoir? Hiya! Can i put under hose plants from the river in my fresh...

Hiya!
Can i put under hose plants from the river in my fresh hose tank?
Will the temp difarance snuff them?
My tank temp is 25`c / 78`f for malawi`s.
Answers:    the cichlids are 'gonna' shred them and you will prob. introduce lice and other diseases
its not gonna work well