I have had a 72 gallon bowfront running for 15 months. Livestock includes, foxface, flame angel, percula clown, two green chromis, red headed solon wrasse, mandarin and a diamond watchman goby. I have an assorted CUC with a cleaner shrimp, serpent starfish, emerald crab, turbo snails and 10 hermit crabs. I have a sump with a refugium which I removed a handful of algae from every week. The original lighting setup in the tanks was 4 x 65 watt pc's with two daylight and 2 actinic. I am in the process of converting to LEDs. Right now I have 2x 65watt(one 10,000K one 420.460nm) PC over the side of the tank with the zoos . The PC bulbs are the original bulbs which are probably close to 2 years old. I recently got my first coral a pair of green zoos. The corals have never opened up as extensively as they were at elite reef when I got them. I only test for nitrates and nitrites and they are both at zero. Would getting a new daylight bulb help them open up more? I am slowly converting to LEDs but it will be a couple of months before the LED side will be as bright as the PC side is right now. Thanks for the input.
Zoos not opening up
- Thread starter jmhartney
- Start date
Closer to the light like Don says, and those bulbs are old.. Are the 65 watt pc's the 4 pin type? if so, I have a set of bulbs that are a lot newer and I'll just give them to you until you get the LED's (don't want them back either 
. Also, your general params should be good (ie Calc 400+, dKH 8+, MAG 1200+)
. Also, your general params should be good (ie Calc 400+, dKH 8+, MAG 1200+)