Toninia sp turning yellow

[kelvin72]

Hello bros of AQ.
I need some help from experts like you.
My toninia sp seems to be turning yellow and some part seems to be rotting off.

I am using ADA soil, temperture around 25 ~ 27, C02 at 4b/s, 440 w of Pl lights and my tank is about 5 feet.

What could be wrong?

[NDC]

Hi There,

An uncle at a LFS ever told me its because of Iron deficency. You can try dousing. Any experts here can advise further?

Cheers

[kelvin72]

hmmm, i thought Iron is for RED plants only?
It make the red richer.... but anyway.. i shall give a try...
Thanks thanks"

[Shadow]

How deep is your tank? how long have you been planting this plants?

[the_r0ck]

It shouldn't be Iron. Do you dose any liquid fert?

[kelvin72]

How deep is your tank? how long have you been planting this plants?

i am currently using a 2.5 ft deep tank. The thing is my 1.5ft deep tanks' toninia sp also turn yellow.... so i guess depth is not the case lor...

These plants are in the tank for about 1.5 months liao.....
Pls help.....

[kelvin72]

It shouldn't be Iron. Do you dose any liquid fert?

aside from iron, i have also planted in lots of soild fert.
What could be the real problem!!!!

[PeterGwee]

Most substrate balls or whatever doesn't include macros in which a plant would use in large quantity after CO2. My guess you are running out of nutrients. N, K, Ca, Mg, P and finally the micros in the order of importance. For such a large tank, you would need plenty of water movement in order to make sure that the CO2 is well mixed in the tank. You do not want to have areas of too high or too low CO2 but rather equal levels throughout the tank.

Regards,
Peter Gwee