These LED's just aren't cutting it. Or - are they?

asylumdown · #1 10-25-2013, 01:37 AM

I was never that impressed with the Vertex fixture. When you say corals are declining, what do you mean? Are they bleaching or browning?

neoh · #2 10-25-2013, 01:39 AM

hammers bleached, but are coming back - slowly. No growth, nothing fully extending, zoas are melting over time.

sphelps · #3 10-25-2013, 01:50 AM

sounds like too much light

Slyguy00 · #4 10-25-2013, 01:54 AM

Id agree. My corals have never been happier since switching to led

Saltnoob · #5 10-25-2013, 02:20 AM

i have the sunbrite led and it is amazing i dont know my light is about 5 inches fron water top and everything is great i got a goni that is about the size of a basketball and polyps extend like 7 inches it loves my led

neoh · #6 10-25-2013, 02:50 AM

I'll try taking it down by 10 across the blues and see if it makes a difference!

PurpleMonkey · #7 10-25-2013, 02:59 AM

In my experience with LED's (designed and built a full spectrum light for my BC29), if the corals bleach, then its too much light too fast. If they brown out, then probably want more light (or nitrates/phosphates are too high -- or a combo of the two factors).

sphelps · #8 10-25-2013, 04:22 AM

Quote:

Originally Posted by neoh

I'll try taking it down by 10 across the blues and see if it makes a difference!

I find the white spectrum is more responsible for high light bleaching but generally you would reduce the entire spectrum to acclimatize the corals to the new light. Most people experience coral bleaching when they make the switch due to running the fixture too high, the visible light is much different.