Way too yellow leaves =(

[Power.P]

Please help, what's this?
Feed/Water pH is generally 6.5-6.8.
I feed it with Bio Canna nutes.
Soil is mixed perlite/watm custings/canna bio terra plus/bat guano.



I guess I have too much perlite there since I can't pour more than 500ml of water in there - it just drains out. The other plant with pure Bio terra plus substrate takes 1L of water without any runoff.

So what is the problem?

 

[namvet25]

It's natural for some of the lower leaves to turn yellow.Get rid of the yellow leaves.You should be using flower nutes at this time higher In phos and potassium.Have you been using calmag? Too nuch perlite is no good because it wont hold any nutrients and may be causing some of your problems.

 

[Power.P]

Hey, yes it's on flower nutes. I guess now I know why it lowers it's leaves between waterings, it's just starving? Well, I can't change soil on this stage already. Should I just try to water more often?

 

[namvet25]

Only water when needed. If the pot feels light it,s time to water.