Problems with my plants

[lllarthurl]

Hi guys,

My aquarium is 9 months old and it is very established. Ammonia and nitrit is 0, nitrate is about 20. No co2, and no fertilized soil. The plants was going very good like this. Since 1 week ago they started to be like in the pictures. 3 weeks ago I started to use easy.life Iron. Now im using tropica Specialized nutrition. Another thing I changed this days was the output of the filter, before was a flute now is a like a duckbill.
Im also thinking to add co2 in the next days.
Any one can help me?

 

[Aiken Drum]

I would give the tropica a few months to see how it goes first. You can't change things and expect results in a matter of a few weeks. I would also try some root tabs in the substrate. I use Dennerle root tabs.

I wouldn't do CO2. You either need to go high tech or low tech. Just throwing in CO2 when you don't have all the other high tech requirements will just result in unhealthy growth and algae. It's all about balance.

High tech requires high powered lights, lots of nutrients including nutrient rich substrate and dosing specialised fertiliser to a regime, injected CO2 and high demand plants that can utilise all of that.

Low tech requires standard lighting, gravel or sand substrate, dose of all in one fertiliser with your water change and root tabs will help, and low demand plants.

 

[lllarthurl]

Thanks! For the advice, I will try like this.
Should I trim the plants with bad leaves?

 

[Aiken Drum]

They don't look bad enough to warrant removal. If it looks like they are dead or dying then remove them. Some of them look like they have algae on them, you might try a gentle clean if you can manage that without damaging them.