Please don't use fish, however hardy, to cycle an aquarium. It's unnecessary when all you have to do is wait for the plants to start growing. As you have used some old filter media it shouldn't take too long but the new substrate could still leach ammonia which is not good for any fish.
I must be going a little crazy because I'm certain I replied to this previously, but alas, here we are with no post from me.
I'm hoping it's quicker than I'm anticipating as the sole reason that I upgraded was that, for my birthday, my kids decided I needed more fish, which pushed my old 60L tank over capacity and it's been a nightmare to even keep close to "okay". To the point I've been using RO water for some changes, just to drop the parameters.
I have done daily water tests since I've had it done, and ammonia and nitrites have dropped to 0.3 and below (JBL Combiset plus NH4 - liquid test).
As above. Test parameters after a week once the tank has settled. Also worth stirring or using a chopstick to move the substrate to remove any air pockets. I would add another small filter inside the tank and have some wool as filter media. This will polish the water somewhat and make it clearer quicker. Keep it up
I have no problem adding another, but I am curious what benefit it would add over running the 307 alone? I have considered grabbing a 407 (or higher) as the 307 doesn't really throw the water around much, and there's not a huge amount of flow around the plants etc; Unsure if this is due to the fact I'm running an inline heater and that's restricting access, whether the dual output lowers the velocity somewhat, or the 307 is just not that good.
You've started out well. Personally I'd add some smaller rocks and stones rights across the front to blend the scape in a bit more and choose ones that reflect the colour if the existing hardscape. Once you plant in the foreground it will all soften a bit too.
I did consider smaller rocks/stones, but since I'll have plecos, loaches and corys, I didn't know how much they'd just move the substrate and potentially cover it.
I added the grass with the intention it would spread over the front, but I suspect that might take a while? Any suggestion on plants for the front? I don't mind grabbing some more
