Tank Photo Containing Live Plants

Oooo, lots of greenery there. Looking good 

I’m fairly confident it will @fcmf - how are you doing on the algae front?

Photo 1: View from front of tank.
Photo 2: View from side of tank.

The two new plants (java fern - middle; crypt - front left) are still alive at several weeks old, so not bad by my standards.    Really keen for these to survive, as they were flourishing on arrival. The java fern was weighted down with a pebble in the centre and is now floating of its own accord 1cm off the substrate - would this be alright long-term?

The hygrophila guanensis (middle back) has a very tall stem with the leaves only remaining at the top - it's having to be kept upright by a pile of ceramic rings on top of a terracotta pot!  I'm beginning to think I might have to decant it into a household flower vase as it's too tall for my tank - would this be an option?

The Amazon sword (left - Photo 2) has neither died nor flourished lately - brownish leaves underneath and some healthier leaves, so I've decanted it out of its pot and into the substrate to see if that helps.

What's left of the Limnophila sessiliflora is in the front right of the tank.  I wasn't planning on restocking but am undergoing another bout of intense broodiness for fish and might find that the QT installs itself somewhere (dear knows where, though!) and inhabited by some additional cardinals and these plants.

Oooh, you must show us a photo of your tank with its new plants on your thread at https://forums.thinkfish.co.uk/new-fishkeepers/struggling-with-plants-and-algae, @Marcus_F
 

Great pics. Nice to see your plants doing well. 

Thanks.
@Matt - at the risk of sounding completely daft, can you confirm for me which part of the plant I'd be keeping?  I read it as discarding the lower part / stem without leaves and retaining the upper part with the leaves on it, and that new roots might sprout from below this upper part near a leaf node.  Mr FCMF read it as discarding the upper part with the leaves on it (which would be a real shame), and keeping the lower part / stem without leaves which would still have the root attached at the bottom but new leaves might sprout from the leaf nodes. Grateful for clarification; thanks. 

I'm currently using the following:
* Seachem root tabs, only in pots with plants (as I'm uneasy about the nerite snails having contact with the root tabs and munching on them due to the little bit of copper in them);
* Seachem Flourish;
* Aquadip Potassium and Aquadip Nitro (but not Aquadip Fosfo, given the high phosphate level in my tap water).

Thanks, @Matt .  Done.   

Two months since my last post and this is how the plants look [NB goal is to keep the plants alive (by having them suitably spaced that they don't die), not aquascaping, much as it's nice to look at]:

[Disclaimer: Apologies to anyone who flinches, or worse, at the two cringeworthy algae magnet-scraper marks down the front of the glass.]

That looks good!

Update: having killed the limnophila sessiliflora (cf https://forums.thinkfish.co.uk/general-fishkeeping-chat/think-fish-keepers-daily-news-2021/msg50712/?topicseen#new replies #10-13), and with the crypt and Amazon sword having shrunk to tiny proportions, and the java fern looking more rugged than lush, I treated the fish to a couple of new plants via my usual online supplier to give some company to the existing hygrophila guanensis (which has actually survived for, from recollection, a whole year (and possibly a 'personal best' in my plant-keeping)!

They are a Cryptocoryne beckettii and an Echinodorus Reni. Photos attached. I know there's a lot of terracotta - it seems the best way for me to keep plants.

Edited to add: Pic 1- vertically cropped photo showing most plants. Pic 2 - horizontally cropped photo showing all fish. Snails are up high on the glass but their numerous eggs are proof of their presence!