Hi, all. I could use some help with this. I just added a large Anubias barteri and two Java Ferns to my 20g tall about 2.5 weeks ago (the tank has been running for about a year). They’ve all produced new growth in that time, but the growth is rather unhealthy looking. The first/only new Anubias leaf since I brought the plant home just opened up yesterday, and it already has a hole/necrosis (first picture). The end of the leaf is also curled so much that the tip almost touches the bottom of the leaf.
Aside from that, the few new Java Fern leaves are pretty rigid/inconsistent in shape.
Other recent problems also include brown algae growing in the crevices of the old/mature Anubias leaves and a combination of green and brown algae growing on the exposed roots of the Java Ferns.
Some details about the tank:
-50% water change per week.
-WC immediately followed by dosing 3 mL of Thrive C (3/4 dose).
-pH of 7.6.
-LED light (Nicrew G2) with max of 4100 LUX / 70 PAR at 12”, but run at an intensity of 40% for 8-9 hours per day to discourage algae (was running it at 60% before a couple days ago).
From the reading I’ve done so far, I think these plants at least have a Potassium deficiency (the old Anubias leaves all have pinholes with brown edges), but I’m wondering if there’s a Calcium deficiency as well, considering how rigid and sometimes pale the new leaves are. I don’t have a test kit for GH or KH but I think I’ll be ordering one in the next couple days. I’m also contemplating dosing Seachem Flourish Potassium or Equilibrium half way through the week between water changes/Thrive C doses. Thoughts?
Aside from that, the few new Java Fern leaves are pretty rigid/inconsistent in shape.
Other recent problems also include brown algae growing in the crevices of the old/mature Anubias leaves and a combination of green and brown algae growing on the exposed roots of the Java Ferns.
Some details about the tank:
-50% water change per week.
-WC immediately followed by dosing 3 mL of Thrive C (3/4 dose).
-pH of 7.6.
-LED light (Nicrew G2) with max of 4100 LUX / 70 PAR at 12”, but run at an intensity of 40% for 8-9 hours per day to discourage algae (was running it at 60% before a couple days ago).
From the reading I’ve done so far, I think these plants at least have a Potassium deficiency (the old Anubias leaves all have pinholes with brown edges), but I’m wondering if there’s a Calcium deficiency as well, considering how rigid and sometimes pale the new leaves are. I don’t have a test kit for GH or KH but I think I’ll be ordering one in the next couple days. I’m also contemplating dosing Seachem Flourish Potassium or Equilibrium half way through the week between water changes/Thrive C doses. Thoughts?