Great white sharks. Trophic Pyramid Information that is in video: An ecological pyramid (also trophic pyramid, energy pyramid, or sometimes food pyramid) is a graphical representation designed to show the biomass or biomass productivity at each trophic level in a given ecosystem.
The risk is that you may not be able to remove all the acid and if it is left on the metal it will continue to corrode the metal. So to give you a quick answer, you can use vinegar to etch the aluminum, but you have to rinse the surface thoroughly to remove all the acid residue.
Some have offered experience that a stout vinegar, like pickling vinegar can be used as a wash over several days to a week and do this. The acidic solution does loosen the nits/egg casings so they can be removed easily with a nit comb. If this did not work one of the OTC or prescription products could be used. ...Read more