So I am setting up a lagoon 25 and cause there isn’t much space in the chambers, I am going to put a ehime have trutemp heater (which is a glass heater) with a few media bags full of matrix. Is this safe to allow the bags to touch the heater? Also I have an acrylic container full of bio ball resting on to of the return pump, not on the intake area. Is this ok? Thankyou

