jackywongto

no worries bro. we are all learning....

Bro, maybe switch off all lights manually. Then off the main switch on the driver. Then switch it back on. Ensure all lights are off. Then adjust the time to 1358 hrs and see what happens after 2 mins. If it is ok, then I suggest you monitor tomorrow photo period. else maybe you would need to drop Razali a call. Keep me posted on the outcome bro!

maybe long lost twins..

correcto.

no lah.... you pay should b 100+ to upgrade to CREE and you only get the light set with CREE LEDs. No SemiLEDs. Mine is a mix up - still waiting for MaxSpect to come back to me.

thanks David. Thanks to fellow reefer for connecting me with Mr L

I requested for it but it is still the SemiLEDs. now waiting for the CREEs LED to be shipped so that I can do the replacement myself. but I am a little skeptical about how yellowish the colour will be for the white LED .....

+1. Everyone runs through a bad patch now and then. There is always a silver lining behind the dark grey sky. Don't harp on it. Think, appreciate and give thanks for the many other wonderful things in your life.... Look forward to your rescape!

erhh... not sure if it is the same LEDs as what you have. I do not have the datasheet for the LEDs. I am not sure how much you are charging for your DIY unit but I think the cost of the MaxSpect given the product packaging, quality & workmanship, casing, 18 months warranty coverage, light stand and hanging kit - is pretty unbeatable. yeah you probably need to crack your head harder and cramp up the project milestones.

I assume you are asking about the SemiLEDs. white = 10k royal blue: wavelength range:450-455nm

You will notice 4 dimmer LED when you switch on just the blue LEDs. these are 1W violet LEDs. Top and bottom row, 3rd LED from both edge. As per MaxSpect - Research had shown that the 395-440nm wavelength excitation was reported as producing the strongest fluorescent response. Hence the addition of these new LEDs to provide greater fluorescence effect.

For those keen on getting CREE LED units, heres more info: The Cree version 110w will have 14pcs of white Cree XP-G, 4pcs of violet LEDs, and 18pcs of royal blue LEDs. The total light output will be pretty much the same as the SemiLED version. But we used more blue and less white LEDs to balance the colour temperature, because the Cree XP-G white LEDs are only about 7000k.

forgot to post pic of my new frag. - Purple Death. 2.5 polyps

no worries. sure sure. Lets head out together next time

thought you wanted BB or I recalled wrongly. if not, maybe go BB. ya keeping SPS right?

k let me get this correct. you switch on 2x250W Mh for 3 hrs and then 5 hrs of 2x 39W actinics only. Bro, that means your tank most of the time just look blue in the day? Yes if I pro-rate your bulb usage, that means you need to change your 2x bulbs every 27 months = 2 yrs plus and you are pushing it to 4 yrs lah.

You have to buy me kopi after this! To set time: 1) Press and hold mode 2) Press + or - to adjust minutes 3) Press timer 4) Press + or - to adjust hrs To set timer 1) Press and hold timer (you will see "ON" on the display panel) 2) Press mode to set white light switch on timing (you will notice that the white LED on driver is lited) 3) Press + or - to adjust minutes 4) Press mode 5) Press + or - to adjust hrs 6) Press mode (you will see "OFF" on the display - now you are going to set white light switch off timing) 7) Press mode again 8) Press + or - to adjust mins 9) Press mode 10) Press + or - to adjust hrs 11) Press mode (you will see the blue LED on driver is lited and "ON" is displayed in the panel. You are going to set blue light switch on timing) 12) Press mode again 13) Press + or - to adjust minutes 14) Press mode 15) Press + or - to adjust hrs 16) Press mode (you will see "OFF" on the display - blue light switch off timing next) 17) Press mode again 18) Press + or - to adjust mins 19) Press mode 20) Press + or - to adjust hrs 21) Press and hold timer DONE!

hmmm I do not have SPS but I used MH hor.....

My thread kenna OT again by Peter. MH bulb are reccommended to be changed every 9 months for optimal performance. This is the general consensus from the reefing community. Based on pro-rating your hrs usage, that means your 2x bulbs perhaps can last you 2 - 3 yrs. Of course you can stretch to 5 years no issue or 6 yrs even. But the important question is then will be how will your corals be fairing then. something that cannot be answered. regarding the reefkeeping report, 30% of PAR loss after x hrs... how important is this 30% to corals? and yeah it is on the average meaning it can be higher or it can be lower too. so again no one knows for sure. Your MH usage is only 3 hrs. T5 5 hrs. T5 = 4 x39W? I think most people switch on longer than yours. But a lot of this is personal preference. Just like when do you want to change your MH bulb? Some people follow religiously 9 monthly while others may drag to 3 years. I am too lazy to calculate but definitely the bulb replacement cost + tubes replacement cost + electrical savings over 3 years will definitely quite a substantial saving. If this lighting arrangement is working for you (which I think it is judging from your corals photos - and I think your feeding regime might have helped as well), then its really great. use the $900 to buy more rics but for starters who might be thinking of gettting the same lightset as you, then they can really consider the LED option. unless they want to follow your photo period of only 3 hrs MH and use the 2 bulbs for 5 yrs. ================================================= anyway a recap (Pls feel free to add in anything I might have missed out) Pros of LED - low heat directed at the tank water surface. Water will be cooler and chiller will kick in much less. I definitely can vouch for this after switching from MH - lower water evaporation and higher water stability. Critical for nanos. - surrounding ambience temperature will be cooler too. - Lifespan of LEDs spec at 5 yrs. No annual replacement required. - No glare from LED light as opposed to MH - lower wattage required achieve the same PAR as a MH. Cons of LED - LED not proven to last up to 5 years as technology is new. - high startup cost

hmmm then the MH bulb & T5 tubes replacement every year or every 1.5 yrs - 2 years? easily 300 SGD i think. Yeah starting cost for LED is always higher but in the long run, the savings are more substantial.

thanks to the Doremon virus spreading round the reefing community. hehe... nano tank just need a bit more planning and you need to be conscientious about the type of corals and their size. I am also getting majority frags from reefers

the higer the kevin, the more bluish it is and it looks nicer. the lower the kevin, the more yellowish it is. Does not look as nice but corals be have better growth rate.

I think they mention that CF has very good LR. just that they are slightly more expensive.

update on LED: just got the latest info that my LEDs are not CREE. They are still SemiLEDs. No wonder the white is still soooo white. CREE white LEDs are closer to 7k so they tend to look more yellowish. Working with MaxSpect to see if they can ship me CREEs over. Sorry for the wrong info.

unfortunately SPS growth is not just dependent on light alone. There are so many other parameters critical to its well being - water parameters, flowrate etc. In a nano, it is extremely difficult to keep a SPS species tank already. Trying to keep LPS, SPS and softies in a nano is definitely way out of my league - that is not to do that it cannot be done though.