Join Date: Sep 2014
Location: Suffolk, New York
LED lighting for 25g cube (Walstad)
I'm trying to decide on lights for my 25g Walstad cube. The tank currently has Monte Carlo in a DSM phase, using 15" 2x20 t5 lights, bulbs are 10K. This will too strong once I flood, plus it's bulbs sizes cant be found everywhere.
The tank is 18x18x19. I other than the carpet of Monte Carlo, I will plant heavily with what I have on hand hygros, pennywort, rotella, anubia, crypt. I plan on picking up some floaters for the flood. I want to keep this MC carpet low and healthy and am hoping to get some emergent growth from my hygros as I have in my other tank.
Substrate is mineralized organic potting soil. Cap will be Flourite Black. I do not plan on adding any ferts, carbon or pressurizing this tank.
The room will get some ambient sun but no direct light.
I was going to follow Walstads instruction and use a 6,500k and wide spectrum t8, but wouldn't mind spending a little more for a sleeker and more efficient LED.
Based on my reading, I want the bottom of the tank to be between 20 and 30 par, since I have a carpet growing - I should be to the higher end of the range.
Would a Finnex Stingray 20" do the job? How about beamswork? I haven't had much luck finding par ratings for beamswork. Should i look for a 6,500 bulb for my 15" t5 and just run one bulb? I am open to other suggestions within that price range.