Project Closed:
PROs:
-LEDs theoretically can last for many years until replacement
-LEDs will help keep heat down
-LEDs will help keep evaporation rates low
-LEDs can be mounted very close to the water surface
-LEDs use 66% less electricity than traditional lighting
-LEDs at this point in time, can equal a 250W MH intensity.
-LEDs are very good at penetrating deep water due to the focused light.
CONs:
-2-3 times initial installation cost, this is offset by long life though
Final Conclusions:
-LEDs can and will grow coral and corraline algae
-it is important to find a good source for QUALITY LEDs
-LEDs are a VERY good lighting option for tanks under 10gallons
-Cost is very high for tanks over 10 gallons
-LEDs in red/blue/uv configuration are excellent refugium lighting options, but are costly compared to other options.
Results:
-80% loss in intensity within 90 days. This is a result of a POOR POOR manufacturer. STAY AWAY FROM BESTOFHONGKONG.com and their EBAY store. Their Blue and reds are still running strong. All of the white and UVs have been losing intensity rapidly.
-My improved array has suffered not one burnt out LED, the whites are simply dying too fast.
-nasty red algae bacteria infestation, likely due to lights or high nitrates from too much DTs, will see if new lights make a difference
maintenance/chemistry
-average salinity: 1.026
-average temperature: 80 deg F, spiked to 88 deg F for a week during summer heat wave, killing many corals, but they were already dying.
-average KH: 9dKH
-average calc: untested, salifert test kit powder is a block of purple goo, dont know what happened to it, doubt the calc is a problem since it's a softy tank.
-average ph: 8.4ish
-amonia/nitrites: 0ppm
-nitrates: 10ppm or less, gets to about 10ppm before a WC
-weekly 20% water changes w/ distilled water that is premixed in jugs with tropic marin salt.
-added baking soda/ kent turbo calcium rarely
-added tiny amount of iodine, once a month
-added DT phyto 2-3 times / week
-auto top off w/ 1tsp/gal kalkwasser distilled water
first 30 days:
-20,000 average LUX at surface
-GSP, Xenia, mushroom, ricordia, zooanthids all open and thriving
-mushroom split and reproduced, xenia reproduced, others grew slowly, GSP grew and started to cover rocks, but lost most colors after a month and turned white.
last 60 days:
-all of my xenia died, my green star polyps bleached their color and most of them died. Zooanthids have not opened in last 30 days. mushrooms are still fine and growing, ricordia stays alive but does not grow.
-clown goby died (most likely because he was already "pinched" and not eating when i got him)
Future of the Tank
-will buy another goby
-will replace some coral with more soft corals
-Recently installed 2 - 13W 10K PC w/ nice reflectors, I get 17,000 LUX at the surface, 65% as good as the LEDs output when first installed, but nearly 300% better then what they output after 90 days due to poor quality.
-I am keeping my red/blue/uv fuge LED. It works great and has lost only 50% intensity since installed 6 monthes ago. 5000 LUX. It has not declined in intensity since 3 months ago and still grows a baseball sized clump in my 4"x4" fuge each week of chaetomorpha.
Undetermined Results
-summer heat probably finished off most corals when the temperature made it into the high to mid 80's in the water for days on end.
-unsure if the corals started to die do to lack of light, chemistry or lack of PROPER light spectrum. But based on the fact that they were doing great for the first month when the lights were still powerful and the fact that I changed nothing and still did weekly 20% WC, I think it was the lights still.
here's a shot I took w/ my camera phone, sorry it's the best I got right now, you can see alot of corraline growth, the lights are the new dual 13W 10K PC's, the LEDs make the tank dark blue now because the whites are almost dead.
you can clearly see the great stuff foam is getting covered w/ corraline slowly but surely with nothing but LED light. This is with 6 months of LEDs on a new tank. The corraline would grow very fast during the first 30 days, but then stop once the LEDs started dying fast.
*MAKE ME AN OFFER IF YOU WANT TO BUY MY OLD LED SET, IT WOULD BE GREAT FOR NON CORAL APPLICATIONS, OR IF YOUR BRAVE YOU CAN FIND A BETTER SUPPLIER AND RESOLDER ALL THE WHITES W/ HIGH QUALITY ONES, I'M DONE SPENDING MONEY ON LEDS FOR NOW.