Well, technically photons are massless and don't have "volume" in the common sense of that word. Red photons do have a particular energy, but I don't think any

Well, technically photons are massless and don't have "volume" in the common sense of that word. Red photons do have a particular energy, but I don't think any photons in the real world have exactly the amount of energy that a theoretical "red photon" is defined to have.