My 40 Gallon is about a year and a half old and I’ve had two groups of zoas from the beginning. All zoas in my tank seem to spread nicely (as you can see it traveling up the rock in the picture), but they grow very tall. They don’t have that uniform tight look I like. What’s the issue? Incorrect PAR? Nutrients? They are towards the top of my tank. I have groups of Duncans and torches about 6-8 inches lower in the tank that do beautifully at the bottom of the tank, so I figured that not enough light wasn’t the answer for the zoas.
