Unable to do light maintenance

[Gouldian]

Hi,

Tried several times but unable to update light maintenace, is there a problem with my settings?

I am able to update others but when I click into the light maintenace page, there isn't a option for me to click.

Btw, can we have Nitrate reading in decimal points as well?

TIA

[kronos5]

I Noticed the same thing. I thought something was wrong with the way I set it up.