LIGHTING ZOAS

[jeeperreefer]

hello, i am having trouble keeping zoas in my 20 gallon long. i use a single kessil a160we mounted 9" above the water in the center of the tank. i also use their controller and ramp my intensity from 0% at 9am and then up to 20% at noon and hold till 6pm where it ramps back down to 0% at 9pm. i run color on full blue. i have tried intensity at 40 and 50 and melted everything. i have a frag that has been sitting on the bottom outside corner for a week and when i moved it 3.50" towards the center of the tank they got mad and started oozing what i think is their algae. all my water parameters are on. i just do not know what else to try. could my intensity still be to strong ? thanks for any help.

 

[GabeM]

I think you should post your parameters because that is not much light at all really. I run 170W peak over my 50 gallon with no issues with zoas and you are running 10W over a 20 gallon.

 

[jeeperreefer]

I think you should post your parameters because that is not much light at all really. I run 170W peak over my 50 gallon with no issues with zoas and you are running 10W over a 20 gallon.

i am going to retest tomorrow and i will post them. thanks.