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danlu_gt last won the day on March 5

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About danlu_gt

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  1. danlu_gt

    Tricolor spa from Higher Thinking

    Thanks @Higher Thinkingfor this tricolor spa from awhile back. It started color up nicely. Sent from my SM-N950U1 using Tapatalk
  2. danlu_gt

    Potassium Nitrate Dosing?

    No point dosing potassium nitrate if you're running GFO and carbon. GFO will just strip out the potassium until GFO is depleted. I suggest removing GFO and carbon reactors. If nitrate and potassium are still zero after a week or so, reduce cheato photo period.
  3. danlu_gt

    Can rapid growth cause color fade?

    If your tank is big enough, add a pair of triggerfish and you don't have to worry about food being left uneaten. ;-) I go though about 2lb of DIY frozen seafood plus 1lb of flakes every 5-7 months, but I have 37 hungry fishes. This is after I cut down on some feeding cause I was worry that some fish might be over weight. Sent from my SM-N950U1 using Tapatalk
  4. danlu_gt

    New ReeFi LED product in prototype and testing phase

    So each LED diodes have an about 120degs spread. Lenses are good to focus the light down to more narrower spread like 90degs or even 60degs. This way manufacturers can use less led diodes to achieve high PAR at 12"-24" deep. However, you will get more disco lighting effect. One of my main concern is light bleed without canopy. I think adding a shadow reflector between the LEDs and frost glass will prevent blinding light bleed when mounted at proper height. Sent from my SM-N950U1 using Tapatalk
  5. danlu_gt

    New ReeFi LED product in prototype and testing phase

    I might have a lens addon option for people with tanks deeper than 24". My current ReeFi Pendant (150W) without lens can get 150+PAR at the bottom of 24". With frost glass cover, there will be some PAR lost, but this model is at 200W plus I'm using Cree Xp-e2 vs Xp-e. Xp-e2 is up to 20% brighter at same wattage. I estimate this model is about 60% brighter the pendant version. With great power comes great responsibility.. 🤣 Sent from my SM-N950U1 using Tapatalk
  6. danlu_gt

    New ReeFi LED product in prototype and testing phase

    I've changed the design to increase the number of LEDs by 20%. I just finished a 3D mock up of how it would look. The initial height is around 3.25", but I'll need to finalize with heatsink manufacturer if I can go thinner and still dissipate enough heat. I have sourced the power supply bricks. I went with more pricier ones that have 95+% power efficiency (less carbon foot print when we power these LEDs). Here's my 3D mock up. I didn't show the mounting points on top. I'm thinking of using glossy black plastic shell and frosted glass panels to cover the LEDs. Let me know what you guys think. Daniel
  7. danlu_gt

    Stock update for the meeting!!

    How many carats? Sent from my SM-N950U1 using Tapatalk
  8. danlu_gt

    New ReeFi aquarium controllers coming in April

    That's exactly correct. I need to update the PCB slightly but now thinking of adding hall-effect current sensor instead of temp along to determine heater failure.
  9. danlu_gt

    New ReeFi aquarium controllers coming in April

    Here's a quick sneak preview of the ReeFi Temperature AI module. Features: 4 power relays (can assign any power relays switch to heater, fan, backup heater, backup fan). Detects heater failure and auto disable it and activate backup heaters. WIFI network to communicate with future ReeFi AI modules (rec other sensor data, send temp data. Example, disable all heater if water level drop below xx amount). Notification (WIP) Web browser interface User can upgrade firmware when new features are added. Attach is a quick video where I'm cycling the temperature between 77F to 80F. Bottom 4 squares indicate the power relay switches, solid squares when that relay is ON. H indicate heater and C indicate fan. Let me know if you have any features you would like to suggest. 0f47e3d5-846f-4315-86bf-c5535638333d.mp4
  10. Put me down for 20 torchus snails, 2 cleaner shrimps, and 2 fire shrimps. Sent from my SM-N950U1 using Tapatalk
  11. I'll take the Jebao doser. Does MP40 works with 3/4" glass? Sent from my SM-N950U1 using Tapatalk
  12. danlu_gt

    freshwater dip vs copper dip

    I dip all new fish with 65ppm hydrogen peroxide (1ml 3% hydrogen peroxide per 1 pint of tank water) in a bucket for 30min. I only buys fish that have no visible ich/velvet on their bodies, but I have purchased fish in tanks known to have ich. Give that a try and let us know if ich comes off after dip. Sent from my SM-N950U1 using Tapatalk
  13. danlu_gt

    Graduated cylinder/ beaker

    In the future, I would like to do a grow out of this sps. It's one of my favorite sps and I haven't seen another one that has similar growth pattern. So far, it as survived 2 of my sps tank crashes and always down to few polyps here and there. Hopefully, this way someone will have it in case something happens to my tank in the future. Need to let it grow out a little more before fragging it, maybe in a couple of months.
  14. danlu_gt

    Graduated cylinder/ beaker

    I guess it doesn't have to be very precise because there are always biases built-in that no body can control. Assuming all tank setup and water chemistry being equal, larger frags will have more growth (most water displacement) than smaller frags. Because of this, most measurement will bias toward larger frags. If we do polyp counts to determine percentage of polyps increases, than that would bias toward smaller frags. Example: frag with 1 polyp than grow to 3 polyps will have 200% increase. haha Maybe we can just take pictures once a month and try to capture pics from same angle then vote of who has the most impressive progressive pictures. Just throwing ideas out. ;-)
  15. danlu_gt

    March 2018 Meet at Hollys Pics

    Thank you Holly for hosting a great event and Bert for the presentation and awesome photos!