[mistergreen]

How tall is your tank? And do you have glass covers? I suspect you need 60+watts of LED lights for a tank that big. You can try adding good-looking LED floodlights. You can target a section of the tank and not have the whole tank fully lighted.

 

[mistergreen]

I would buy one that you can dim in case it's too much light. I don't think you need to break the bank to buy lights.

 

[mistergreen]

I’m not sure. It would be helpful if the light listed their PAR data. That’s how Bright it is. Some of them do list the PAR. Ideally, the PAR to your substrate should be 50-70 for something like baby tears. You can borrow a PAR meter to measure how much light you have.

 

[mistergreen]

That sounds good. A glass cover should help to reduce the PAR by 10-20% if you're getting too many algae.

 

[mistergreen]

Which version of the fluval light do you have?
it looks like version 3.0 has plenty of PAR.

Fluval Plant 3.0 LED Light PAR Tested & Reviewed 2022

I bought the Fluval Plant 3.0 Spectrum LED lighting kit, par tested it, reviewed, and compared it to 4 other LED lights to see how good it really is.

modestfish.com

 

[mistergreen]

Ah, 27 PAR is quite low.