Rotala bonsai leaves Brownimg on ends

[•Cai•]

Hi all, I've noticed some Browning occurring in my rotala leaves lately and would like to know if anyone knows what's happening?

Tank is 2weeks into cycling with Ada Amazonia

Previously dry started for approx 8weeks

Rotala and other plants growing now submerged but only rotala with brown edges.

Flows high, co2 is high and light is also quite high. Photo period is on for 5hours at moment.

Cheers everyone

 

[zozo]

The above ground emersed growth form is for most plants different to aquatic submersed (above ground) growth form. In many cases both forms submersed and emersed wont easily survive the drastic change of inveronment visa versa and go in transition. This transition is melting away from it's emersed form and make new submersed growth from it's stems and roots.

Dry start you do with plants already grown emersed in the nurseries and is aimed to proper and beter root development. So a plant can grow stronger trough it's transition from emersed to submersed. The dry start doesn't prevent this transition, actualy the longer the drystart the more emersed growth, the more material is grown to go melting in the transition. This depends per plant sp. how well they take it. 🙂

Rotala is such a plant with a specific different grow form between emersed and submersed and need transition. But usualy bounce back pretty good..

The melting you witness after 2 weeks is normal and a process you'll have to wait out. New growth will develop soon, hard to give a time frame to that. Some plants maybe just never do and just die off.. Like the pogostemon helfiri is notorious for many, including me. 🙂

 

[•Cai•]

Cheers @zozo. I'm already getting new growth. It's a fast grower for me to be fair. I was just slightly concerned that the lower leaves were browning but this answers my worries. Lower melt is older leaves.

 

[zozo]

If new submersed growth already is present, than selectively cutting old melting growth away, will only make the young ones grow faster. 😉 It dies off anyway so no need to keep watching it die till the very end. 🙂

 

[•Cai•]

Cheers matey. I was just sceptical as what was happening. Didn't go straight for the obvious answer.

 

[zozo]

We all once did and still do i guess, so no need to headbang for it.. 🙂 Lots of things are obvious once you know it.. We all sometimes encounter "why didn't i think of that myself?" moments, i guess.. I do..

 

[•Cai•]

I was thinking is it nutrients? Have I light too powerful? Is my high flow causing rot? haha. Silly Cai haha