i have 2x 175watt MH and 2x96 watt actinics ,,,,,,the MH are on for 8 1/2 hours a day with actinics on for 12......2 maxi-jet power heads and good water quality.....0 ammonia and nitrite, 5ppm of nitrate, and good calcium and phosphate.....
the single zoa could still spread right? or does there need to be more than one? im guessint they spread more quickly with more than one but i wonder if they still can spread alone