07-23-2020, 09:58 AM
Join Date: Jan 2018
Location: Slovakia, Europe
| | Re: 2 days post DSM flooding questions...
I was using 10W LED bulb on my 2.5 gallon bowl and it was ok. I find algae to be the best bioindicator of imbalance between plants requirements, light (intensity and duration), co2 and other nutrients.
Assuming that fresh NPT has plenty of nutrients and adequate levels of CO2, I use this time to setup my "ideal" light schedule. I start with duration and intensity which suits my preference (if the tank's in a bedroom or living room, etc.). Usually it's hard to nail the ideal combination on the first attempt, so once algae appears (staghorn and green spot in my case), I slightly decrease intensity and/or duration. If by any chance I don't have any algae and I want to push it to the edge, I increase both until algae appears and then tune it down a little. After few weeks of tweaking I have my tailored schedule for the given tank.
These days I strongly prefer having lights with automatic intensity control, it allows me to have even 15 hours of light with minimum algae (I do not use siesta break) and livestock is not stressed by sudden light changes.