First item, on the Ista fertilizer. They do not say what is actually in it, so I cannot offer much, but it seems to be a basic complete fertilizer. I know what is in Flourish Comprehensive Supplement and why, so it is easy to recommend that, or the two others that are much the same (Brightwell Aquatics' FlorinMulti and The Nutrient Company's TNC Lite [latter may only be available in the UK]. But the Ista might be just as good for all I can tell, so use it.
Second item, on the cycling and filtration. The initial question was cycling with plants, and you need to have some fast growing plants and see that they are obviously growing. I always have floating plants, and they are very fast growers. These handle the ammonia from the cycling. Theree is no need to "cycle" the tank but the bacterial products won't likely harm anything, but I would not use them myself.
Goinbg forward, filtration in a planted tank that is reasonably planted and includes floating plants is only needed to move the water and provide mechanical filtration (removing particulate matter so the water is clear, which is not the same as clean). The fish species determine which filter is best, as water movement affects fish, some need more, some need much less. All filters will do biological filtration but this will be secondary to the plants.