|
Old
leaves turn
yellowish/ red
|
Nitrogen
deficiency
|
|
Old
leaves turn
yellowish/ red
----------
Leaf loss and
small dead areas
|
Phosphate
deficiency
|
|
Black/
brown leaves,
plants die
|
Excess
phosphates
|
|
Yellow
spots on old
leaves and
yellowish margins
on younger leaves
|
Potassium
deficiency
|
|
Yellowish
margins on young
leaves with
deformations
|
Calcium
deficiency
|
|
Yellow
spots on old
leaves while veins
stay green
|
Magnesium
deficiency
|
|
Young
leaves turn yellow
|
Sulfur
deficiency
|
|
Yellowing
leaves starting
from the tip then
become transparent
|
Iron
deficiency
|
|
Yellow
spots between the
veins,
margins and tips
|
Zinc
deficiency
|
|
Plant
stays small slow
or now growth
white deposits on
leaves (calcium)
|
CO2
deficiency
|
|
Fish
gasp for air on
surface
|
Excess
CO2
|
|
Sluggish
fish no plant
growth
|
Oxygen
deficiency
|
|
Plants
stop growing/
black roots
|
Substrate
problem
|
