Hello everyone! I received a 10 gallon aquarium from a woman that I work with. It is glass and came with a UGF, air pump (whisper), lid (glass), strip light, a heater, gravel and some fake plants. I told her that I usually buy tanks for $1 gallon and that I'd give her $20 for the setup. She seemed "okay" with this, but I think she feels like she is getting ripped off. I work with her and don't want to cause a rift. What do you think a fair price would be? Thanks for the input!!!!! I value all of your opinions!