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As title says, I think I have some nutrient deficiency problem. First some specs: my tank gets 108W of T5HO for 10 hours a day (tank is 75g) CO2 is steady, drop checker shows light green color after 2-3 hours from when the lights turns on.. I use mineralized topsoil, so I didn't dose anything but a little bit of potassium once a week recently. Everything grows fine and look nice except two things-
1. Rotala sp green and rotala indica- it formed a great, healthy bush, but I wanted to shorten it and create a nice shape to it, so I trimmed it aggressively
Now it hardly grows new leaves and they, as well as few old ones, turn transparent here and there.
2. Dwarf hairgrass was growing very rapidly, but now it grows much slower.
I have a very soft water from the tap, so maybe it's calcium deficiency? I did some research and someone said that when there's not enough calcium, new leaves grow twisted and deformed. While I didn't notice this with rotalas, alternanthera reineckii, which I kept before, used to do that with new leaves.
Is it calcium? If yes, what can I do (escept adding crushed coral to the filter)? Or is it something else?
Thanks for any help.
1. Rotala sp green and rotala indica- it formed a great, healthy bush, but I wanted to shorten it and create a nice shape to it, so I trimmed it aggressively
2. Dwarf hairgrass was growing very rapidly, but now it grows much slower.
I have a very soft water from the tap, so maybe it's calcium deficiency? I did some research and someone said that when there's not enough calcium, new leaves grow twisted and deformed. While I didn't notice this with rotalas, alternanthera reineckii, which I kept before, used to do that with new leaves.
Is it calcium? If yes, what can I do (escept adding crushed coral to the filter)? Or is it something else?
Thanks for any help.