Anubias plant's

[Re re]

Trying to find the best settings for my Anubias, amazon sword and Jarvis fern. Im seeing black algae starting on my Anubias.

 

[Administrator]

1. What's your tank size?
2. What's the light model and size?
3. What's your light settings?
4. How old is your setup?

 

[Re re]

My tank is 4 foot, 200 litres
Chihiros WRGB II Slim LED Light with Bluetooth App Control 120cm
All the settings were on 35% for 9 hours a day, with the ramp mode on
My tank is over 8 months old

 

[Administrator]

WRGB II Slim 120 light on a 121.92cm long tank.
What's the depth and height in cm?

You can reduce photoperiod to 6h a day.

 

[Re re]

The length is 122 cm
Hight 50cm
Width 36cm