If I were to buy any LED's from Amazon, it would probably be
THESE.
This is the guy that said a 16ft/5M roll will get dim towards the end, so his are 8ft long and said to run 2 in parallel. They are also 24V, not 12.
He also sells a super bright version
HERE. It's the same thing except the super bright has two 8ft rolls instead of one.
The big difference is they are not SMD 5050, they are 5730. The 5730 is a bigger led chip with a wider and brighter angle of light (120° angle). They are also IP68, but says the operating temperature is -20 to 50 degrees. I don't know if that's Celsius or Fahrenheit.
I found a company in the UK that makes "commercial" grade LED tape and uses brand name LED's. The name of the company is called InStyle. I was going to contact them as well. If you look at their site, at the bottom where it says "about commercial grade," they go into the heat aspect. They say they use a wider board for heat dissipation and the cheap Chinese ones use a thinner 10mm board, which holds more heat. They also say they use the proper resistors for each color of led.
The lights I linked to from Amazon above use the 10mm board. But out of all the Amazon lights, those are the only IP68 rated ones that mention "Coral" in the title. And if anyone buys them, I would use two in parallel because in my research I read that the Chinese lights will try to use a 24V power supply to make the lights brighter, but burns them out faster. The adapter isn't included with those lights, but he lists the part in the description.
I'm not vouching for the quality of these at all, just to be clear. I've never used them and they definitely are Chinese lights.
Oh, and the guy from Pax Bellum said an MJ-900 pump is what they recommend for their ARID reactor. About 150 gph.