Finnex Ray II medium light on 55 gal IMHO
I use Finnex planted plus on 55 gal and it is low light but still able to grow anubia,crypt's,mosses,Val's,water sprite,other lower light tolerant plant's.
Fluval 2.0 would be in running also for medium light.
I use Finnex planted plus on 55 gal and it is low light but still able to grow anubia,crypt's,mosses,Val's,water sprite,other lower light tolerant plant's.
Fluval 2.0 would be in running also for medium light.