torontofc
Aquarium Advice Activist
Hi, it's been a year since I got my Metal Halide fixture, so I've decided to change the bulb soon, but I've heard many different opinions about the spectrum. Which spectrum should I buy (10000k 14000k or 20000k)?
I have another question, does anyone know the difference between 150HQI and 250HQI, I have a fixture that can hold 250HQI bulbs, can I put a 150 HQI bulb in? Thanks
I have another question, does anyone know the difference between 150HQI and 250HQI, I have a fixture that can hold 250HQI bulbs, can I put a 150 HQI bulb in? Thanks