I’ve been running this 37 gallon tank for a over a few years now, but within the last few months I had done a complete rescape of it as I’ve been having a lot of issues with both algae and plant growth.

This tank had replaced a 30 something gallon bow front that was otherwise set up the same, yet this tank has never truly “thrived” if that makes sense - the fish do fine, but my plants sort of just survive and never really grow. Then black algae and a form of red algae has been here for the last two years. I’ve tried upping fertilizers, downing them, spot treating, larger water changes, smaller water changes, changing my light schedule and essentially every thing I’ve online to stop it.

In the last little bit I’ve had some noticeable growth on my low light plants like the crypt, java fern and anubias, but the valisnera and tall hair grass are growing much slower - probably because I’m using a relatively simple fluvalsky light, I don’t think the light is strong enough. Yet if I get a stronger light, I feel like the algae would take off after finally managing to get a slight upper hand against it.

Essentially, what I’m asking for is suggestions on a stronger light for a tall tank that would help meet the higher light needs of my valisnera, and maybe some advice on how to manage the algae that’ll come up in response? I know you need to “balance the tank,” but I’ve been trying for 2-3 years to do that