[Commercial Disclosure] Happy 4th of July ShrimpID giveaway!
Play with the app, identify shrimp, and report issues—it’s that simple!
How to properly add a 2nd switch to control basement light
Basement with one switch that controls all lights. Box has one incoming power cable and two cables for lights.
All black wires are connected together with wire nut and a pigtail black connected to the switch. Also there a light load red wire connected to this switch.
All common white wires are connected together with wire nut.
I have a new 3-wire cable ready and another new switch I’d like to add in a different room, so I can control lights from both locations.
Is my understanding bellow correct?
Switch 1 (Original Box)
This switch receives the main incoming power and passes it forward.
Dark Common Screw: Connect the original Black Hot wire (the line from the breaker panel).
Brass Screw 1: Connect the new Black wire from your 3-wire cable.
Brass Screw 2: Connect the new Red wire from your 3-wire cable.
Wire Nut (Splice): Twist the original Red Load wire together with the new White wire. This extends the load line to the next box.
Ground Screw: Connect the bare copper wire.
Switch 2 (New Box)
This switch receives the travelers and sends the power back up to the light fixture.
Dark Common Screw: Connect the new White wire (the extended load line coming from the wire nut in Box 1). Wrap this white wire in electrical tape to mark it as hot.
Brass Screw 1: Connect the new Black wire from your 3-wire cable.
Brass Screw 2: Connect the new Red wire from your 3-wire cable.
Ground Screw: Connect the bare copper wire.
Thank you.
[Commercial Disclosure] Added shrimp variety identifier. How useful would this be to you?
I’m the developer of ShrimpID, and shrimp identification is one of the features I wanted to build from the start.
It is meant to help narrow down freshwater shrimp varieties from a photo, especially when you are trying to figure out what you have, label a tank, or keep track of different lines. It is not meant to replace your own judgment, especially with higher-end Caridina where pattern, color, age, and lineage can make a big difference.
It is still growing, and the shrimp identification and counting features will become more accurate over time as I add more reference content and continue improving the system.
For transparency, ShrimpID has a free Hobbyist tier, with optional paid plans for larger setups and breeder-focused tools.
Would you use something like this? And what would make an identification result useful enough for you to trust or double-check it?
[Commercial Disclosure] I built ShrimpID after outgrowing my shrimpkeeping notes
I've been keeping and breeding freshwater shrimp for a while, and once I had more than a few tanks, keeping track of everything started getting messy. Water logs were in one place, maintenance reminders in another, then tank labels, notes, and production records all ended up spread across different places. It worked, but it was not a great system.
As I started selling shrimp to LFSs and online, it became even harder to keep everything straight. That was when I decided to build something to organize it for myself.
About a year ago, I started building ShrimpID to bring that side of shrimpkeeping into one place. It includes tank and rack management, water and production logs, shrimp variety identification, catch-box shrimp counting, quick tank access via OCR, personal assistant, and a rack heat map that helps show which tanks may need immediate attention.
The clip here is from a local development build, so it may look a little less smooth than the version in the app.
ShrimpID is currently available in around 16 countries and is English-only for now. The Hobbyist tier is free, while paid plans are mainly for larger setups, farm tools, and advanced features.
I'm still improving it, so if you notice anything that could be better or have ideas for features that would actually make shrimpkeeping easier, I'd genuinely appreciate the feedback.
How are you currently keeping track of water parameters, maintenance, breeding records, and tank notes? Spreadsheets, notebooks, another app, or mostly memory?