Hi i would really likes ome adivice. I have had a planted tank for a while and everything is going great. i am planting it more heavly. putting plants all along the back. my heater is at the back at an angle. Is it ok to surround it with plants and stuff? well to plant them along the back where they may touch it? i will leave a little room but how carefull do i need to be. all advice really apreciated. want to make sure its ok. thanks..