I have a 60 litre aquarium that has some Amazon swords in it, along with some crypts, anubius and limnophila sessiflora. Everything is doing well, apart from my Amazon swords won’t grow tall. They grow lots of new leaves all the time, but never get bigger in height, it’s weird.
I have fairly hard water, I use root tabs and dose once a week with seachem flourish comprehensive (no getting easy green in the UK 😢). I’ve noticed that on some of the leaves there are small brown spots, but the majority of leaves are very healthy. I prune the unhealthy ones occasionally and I took a picture that I hope has attached of the brown spots. Has anyone an idea on what it could be?
I was thinking perhaps the light needs to be on longer as currently it’s set to like a sunrise, gets brighter, then dims then goes off at night in a gradual way. So I was considering turning it up to full brightness and just having that on for 8 hours a day, however I don’t want to ruin it for the other plants that are doing well. Stocking wise I just have a few neons, a betta and lots of ramshorn snails.
Any ideas would be welcome! Thanks.