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Everything posted by danlu_gt

  1. danlu_gt

    Fun with 3D printer

    I have an old Eshopp large cone skimmer but the magnet part of the impeller have cracked. Replacement impeller was a bit pricey so this weekend I decided to upgraded it with my Jebao needle/mesh conversion kit. Bought a Jebao DCP-10000. Also made a custom bubble diffuser. Sent from my SM-N950U1 using Tapatalk
  2. danlu_gt

    Fun with 3D printer

    wow.. 4 printers! Which ones did you get? I'm using Robo 3D R1+ which is based off Marlin firmware. There are a lot of new features added in the latest version but I haven't bother upgrading the firmware yet. Yes, a lot of TLC is required. There are a lot of settings (1st layer z offset, extrusion offset, and calibrating xyz distance) to figure out. Once they are good, I haven't had to touch those. Have you run into PLA clogging? I ended up making an oiler and seem to fix it. I though of addition filament detector so it would pause when it ran out of filament until I change it out then resume. Now, I just guess if there's enough to finish the print. Which slicer are you using? I tried different ones but I still like Slic3r the most. It's probably the most complex in terms of settings but I kinda like that control over simplicity, but I wish they had option to delete part of the support for complex prints.
  3. I'm super excited about this new ReeFi product line. I've finished designing the prototype board and have send it off to get it made. Once testing is completed, I will work with manufactures to get it mass produced. No more sweat shop from my garage. haha Here are some sneak preview on specs... More unique spectrums - same old favorites plus new requests. Every spectrum diodes can be controlled, no more grouping color spectrums. WiFi controlled and possibly Bluetooth as well. Either regular display or touch display. More max power for larger and deeper tanks. Multiple light sources to combat shadowing. Modern sleek look. Sensors to notify when it's time to clean off the fan dust for optimal performance. http://www.reefi-lab.com/index.php/2018/02/16/new-reefi-led-products-design-completed-prototyping-and-testing-now/
  4. danlu_gt

    New ReeFi LED product in prototype and testing phase

    The bulk of the cost is the LEDs and components. Even just importing just the LEDs and components in the USA for assembling will still incur the 25% tariff on the bulk of the cost. Plastic injection is all done by machine, so cost difference is very little if those parts are made in China or USA, but if made in China I can use some recycled plastic vs 100% virgin plastic to be more eco-friendly. We send most of our recycled plastic oversea.
  5. danlu_gt

    New ReeFi LED product in prototype and testing phase

    I am trying very hard to bring top of the line specs at very competitive price. Just found out the trade war with China is on... 25% tariff! Just about to work out all the production issues and now this. [language filter]! 😡 http://money.cnn.com/2018/05/29/news/economy/china-tariffs/index.html Sorry for my rant...
  6. danlu_gt

    Majestic Angel in gangland

    Dodge, you're welcome to my social box or anyone wants to borrow it. I don't plan to add any fish in my DT in the near future.
  7. danlu_gt

    Majestic Angel in gangland

    Also feed heavy helps too.
  8. danlu_gt

    Majestic Angel in gangland

    With so many tangs which can get very aggressive to newcomers, I always recommend putting new fishes in a clear acrylic social box. Only when existing fishes stop attacking the social box then release the new fish at night when tank is darkest. Sent from my SM-N950U1 using Tapatalk
  9. I first got two of these at CnC in May of 2017. At the time, they were already larger than the usual black trochus snails, maybe close to 1" size. Within a few months, I noticed they grow pretty fast and was intrigued to find more info. As a kid growing up in Taiwan, my parents would take us kids to the coast. I remember street vendors selling large polished triangular snails which resembled these guys. After some googling (which is harder without know what these guys are called), I found that they are being activity breed with giant clams. Fully grown can reach 15cm across. Mine have grown to slightly smaller than baseball size. According to G.A.HESLINGA and A. HILLMANN, they can be easily captive breed. Here the doc I found: https://docs.google.com/file/d/0BwZ8-4sMhZ0ONWI1MzdjZTctMWUxMy00MzQ5LWI2ZTgtMGE3MDNkM2ZhOWYy/edit?hl=en I'm eager to see if mine would reach 15cm and when they will start spawning. Sent from my SM-N950U1 using Tapatalk
  10. danlu_gt


    Just eye balling, the 2 largest one's growth rate seems to be slowing down. Got 2 more several months back which are starting to catch up to the big ones. For their size, they are surprisingly "gentle" when moving through my coral frags. I think it would be fun to do a growout competition on these guys. Hehe Sent from my SM-N950U1 using Tapatalk
  11. danlu_gt

    Fun with 3D printer

    Yes, I made the 3D model myself. Hardest part was trying to get a good measurements. It was close enough to make a good fit. Sent from my SM-N950U1 using Tapatalk
  12. danlu_gt

    Fun with 3D printer

    The original skimmer also have a diffuser but it wouldn't fit the upgraded pump. The main upgrade was going from small AC pump to more powerful DC pump. With pump now outside the skimmer, there is a bit more area for bubbles in the skimmer body.
  13. danlu_gt

    Goodies from Seahorse

    Stop by Seahorse and got some nice corals! Nice selection there! Sent from my SM-N950U1 using Tapatalk
  14. 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
  15. 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.
  16. 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
  17. 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
  18. 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
  19. 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
  20. danlu_gt

    Stock update for the meeting!!

    How many carats? Sent from my SM-N950U1 using Tapatalk
  21. http://www.reefi-lab.com/index.php/2018/03/12/reefi-temperature-wifi-controller/
  22. 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.
  23. 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
  24. Put me down for 20 torchus snails, 2 cleaner shrimps, and 2 fire shrimps. Sent from my SM-N950U1 using Tapatalk
  25. I'll take the Jebao doser. Does MP40 works with 3/4" glass? Sent from my SM-N950U1 using Tapatalk