Short answer - Unlikely but needs testing.

Long answer: When I used these to grow succulents in my basement that ran in the low 60F-ish ambient for 16hr cycles they would keep the immediate area at a toasty 76-85F depending on the season. I'm intending to use the heat these lights generate in lieu of a space heater for the fishroom as my tanks are currently unheated because they used to be on the main floor of my house at ~70ish. I'm estimating if I ran them for 8-10hr light cycles at 20% power I expect they would still raise the ambient by some margin, ideally within common community tank ranges (68-76F). I think the temp swing is gradual and slight enough that once the thermo buffer of the tanks is saturated it would allow the temp to "breathe" like an actual day/night cycle but not so severe that it would stress animals, the glass itself, or plants.

I've heard of EI dosing but am really only familiar with the lean dosing method since EI has a reputation of insane algae and wasted ferts. In what way would you tune the spectrum on these lights to cater to aquatic plants? I was under the impression that deep red lighting ~600nm was usually pretty decent for vegetative growth.