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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

    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.
  2. 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.
  3. 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...
  4. 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.
  5. danlu_gt

    Majestic Angel in gangland

    Also feed heavy helps too.
  6. 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
  7. 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
  8. 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
  9. 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.
  10. 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
  11. 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
  12. 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.
  13. 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
  14. 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
  15. 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