The answer to your question lies in an experiment. Perform it and you will know the answer. When another repeats it. It is then science. Did they report experimental results or describe the testing behind the claims.
Just offhand, a reflective surface would probably help to reduce heating from solar radiation.
You & Bill are spot on. I wonder if Texas Hunter would try making the surface reflective, especially of infrared radiation, while leaving the bottom green (fish seem to have an aversion to white). I'll bet that makes a significant temp difference!
I am not trying to denigrate TH or this habitat. Great base for periphyton, which as we all know is important. Shade during summer is welcome, too, as it reduces excess weed growth. Heck, anything that makes fish feel more confident & protects them from predatory birds is a good thing. I may end up purchasing some, assuming I can afford it after fueling my vehicle. Just think it could be better suited for southern climes, even though white surface isn't as natural looking.
Question is, do people buy with their eyes, or their brains? For me, it's too often the former!
