why does leave turn brown ?

[joeyttk]

hi, my leaves and some of the moss, start turning brown. Is it lack of fertilizer ? my co2 seems ok.

[Shadow]

can be because of many thing, fertelizer, Light, etc.

Why don't you start by sharing your tank setup configuration.

[salexjared]

Yeap there are many things like the type of moss you are growing and the temperature, light on hours and so on.

[joeyttk]

sorry, let me share more

1. Lights 30w x 2 + 24w x 4
2. Tanks 2ft
3. Temp 25-27 (chiller managed)
4. CO2 (untested, but bubble count around 3-4 per sec)
5. Tank being around for 5 weeks

a. Fast growing plant in Week 1
b. Rescaped in Week 2 with mixed of plants
c. Transfer 20 Neon from stable tank in Week 2, added 2 oto
d. Added some Yamato (5 survived) in Week 3
d. Introduced Flame Moss in week 4. Can see growth on the moss (grown thicker), but can also see some turning brown

[Shadow]

you have lots of light for 2ft tank (I'm assuming 2ftx1ftx1ft). How is your ferteliser dossing regime? make sure you dose enough ferteliser and enough CO2.

[joeyttk]

I think it is the fertilizer... not doing it because was afraid of encouraging the algae.. will now dose on a weekly basis

[Shadow]

Amonia (NH3/NH4) will cause algae but not NO3.