How much is too much light? Lighting options for a 20H
Hello lighting experts,
I'm in the process of setting up a new 20H, and I'd really appreciate advice on lighting options. The 20H will be a Southeast Asian biotope tank, with java ferns, moss, cryptocorynes and vallisneria in a substrate of eco-complete. Fish will include a betta, a couple of dwarf gouramis, maybe some danios and some loaches. I'll add more plants as the tank establishes itself.
I understand that the minimum wpg is ~2.5, but is there a rule for determining the maximum wpg for a tank? What is the best wpg for my 20H setup?
At first, I was going to get the 1 x 65w Coralife hood.....but now it seems that 65wpg will put me into the "low light" range.
Is 130w (2x65) or 110w (2x55) way too much light for a 20H?
Should I go with a 72w (2x36) hood?