hygrophila pinnatifida Care

[Blueskiesdz]

I have a number of hygrophila pinnatifida and they all have black spots on their leaves. Is this down to a nutrient deficiency or toxicity ? I'm been EI dosing for 2 weeks and these black dots have appeared in the last 4/5 days. I'm confused as I've read it can be either a deficiency or too much nutrients ! Or maybe co2 deficiency ??

Any help as I don't want increase EI and make it worse or vice versa !


Thanks as ever

 

[Sarpijk]

Hygro pinnatifida. The bane of my existence. Is yours planted in soil or attached to hardscape?

 

[ceg4048]

Poor CO2. Check injection rate, or injection timing, or flow rate, or flow distribution scheme, or plumbing, or any combination thereof.

Cheers,

 

[Martin in Holland]

I have a number of hygrophila pinnatifida and they all have black spots on their leaves.

Could it be algae? A picture would help.

 

[Blueskiesdz]

The hygro are planted and im quite sure it's not algae as the black spots then become holes.

Yes I think it's co2 as Ceg said and the problems have probably started since I've been using it via an inline diffuser through the filter. I've now used a diffuser in the tank next to a power head and the drop checker is lime green and the plants are pearling. This hasn't occurred whilst I was using the inline unit. I'm amazed how quickly the plants deteoriate ! I'm hoping with the EI dosing and the correct co2 the plants will be healthy again.