What's going wrong with my setup?

[CuriousGeorge]

Hello,

I'm in need of some advice. I used to have a Juwel 180 with the fluorescent tube type lighting and had a very successful planted tank that remained healthy, full of life and fairly low-maintenance for about 5 years, recently I had to get a new tank due to a lack of space and got a Juwel corner 190. However I didn't realise at the time it has the newer LED light bars. I went through the whole process of taking down my old tank, saving what supplies and plants I could and setting the new tank up in as similar a manner as when I set up my other tank (same substrate, water supply and parameters etc.). The only difference was the lighting, I expected some melt back of the plants as it was rough moving them but within a couple of months they had all died and the only thing I seem to be able to grow now is algae. How should I be using these LED lights, what could I be doing wrong?

Thank you very much for any help.

[Martinspuddle]

Greetings & welcome to

Transitioning from T5 to LED lights shouldn't make much difference.

What are your current water parameters, fertilizer dosing schedule and have got the previous Juwel 180 aquarium parameters to compare?

[fr499y]

Make sure you only have them on for 6-8 hours max, they might not seem as bright as the tubes, but they certainly have more poke to them.

I have a feeling Stephen had the same issue and swapped the cool white (daytime?) LED tubes out for the plant version.

[black ghost]

Welcome to the forum.

Changing lighting can have a drastic effect on plants, as you’ve found out. Maybe a lot of your plants are amphibious (a lot are) and the new lighting is making them drop their aquatic leaves because the new lights are brighter, or a whiter blend...?

As for advice, I can’t help much. Try what fr499y said. Plants do experience shock if they’re moved. It can be severe.

[plankton]

Welcome to the forum.
I've got a Trigon, and I've had all sorts of troubles when I first got it, I think mainly because of the flow. It took me about 18 months to get the flow right and get anything (except cyanobacteria) to grow. I now just have cryptocoryne wendtii and anubias.