Very clean trimming. Have you thought about maybe adding a sand path down the middle of the canyon? It might help break up the solid line of green across the front, and help solve your growth problems in those dark areas.
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I thought about this, but seeing other tank journals that use sand trails, I've realized that the sand trail is a nightmare to maintain clean. It looks good the first couple of weeks and then it starts to get contaminated with dark soil and the sand usually starts to turn darker / brownish after a while, losing the aesthetic. I wanted to try something different by creating a "green path instead", which I haven't seen many tanks using. The carpet that I planted along the canyon is growing, just at a slower rate, plus keep in mind that I did not plant any carpet there until recently so it hasn't had the full length of time to grow as the rest of the plants in the tank, but you are right about the front carpet being too consistent and boring. I wanted to complement the far left and right foreground corners with some staurogyne repens or pogostemon helferi to add some variety. And maybe also spread small clumps of them in a few different spots.
Thank you for your input
On another note, I spotted one of the amano shrimps last week. I had not seen either of them (originally there were two) for quite some time, over a month even so I thought they had died or something, but seeing one of them made ma happy, however I don't know if the other one is also hiding. Ever since I added the Tarpae tetras, all the shrimps stay hidden in the bushes in the background, but very few venture towards the front, which is kind of a bummer because I like seeing them more, but it is what it is...
This week, I will be adding some of the root tabs that someone recommended to me to see if it improves the plant colors.
That's all for now, more pictures coming up in a few days