Growing zoas - which t5's?

[hanmisi]

Hi, i have some zoas in a shallow tank (only8" deep) with 2 t5 tubes directly above. which would be best for growth? I have a 6500k and a narva blue right now, wondered if swapping the blue for another daylight would increase growth, or if its anothet factor thats leading to no growth. My params are all acceptable, nitrates been the only concern at 2.5ppm.
Happy to hear your thoughts/opinions.

 

[twinspots_goby]

Without knowing your tank size, I would say get the ATI blue plus. those are nice quality bulbs with more par. Does each bulb come with its own reflector? are they good quality ones? you might wanna change to higher quality reflectors to gain more efficiency as well.

 

[mfinn]

I'd go with a ATI Blue Plus and a ATI Aquablue Special.
It's not just the light that's going to make zoanthids grow. Age of the tank is huge.
Patience is also needed.

 

[tqpolo]

+1 on Blue Plus and AquaBlue. Zoas prefer tank with high nutrients.