Which t5
- Thread starter shanefee
- Start date
That is just the color of the bulbs... as far as which one will give you more usable light (intensity) for corals I would go with the 14k.
If this is for a fish only tank, then it is all up to the looks of the bulb, 18k will be more blue than 14k, and it is just personal preference at that point.
If this is for a fish only tank, then it is all up to the looks of the bulb, 18k will be more blue than 14k, and it is just personal preference at that point.