2. WHAT IS LIGHT-DARK TANK TEST?
Standardized methodology for assessing fish anxiety like behavior
More time spent in the white region = more eager to explore
More time spent in the dark region = less eager to explore, more wary of potential
predators
3. HOW DOES IT WORK?
- Fish are acclimatized inside the tank for 3 minutes
- The fish are restricted to the middle area with flaps
- The fish is then recorded swimming in the tank for 15 minutes
4. PHONE STAND
- For convenience
- Standard tripods might take too long to setup
- Standard tripods might be bumped out of focus every
after observation session
- Dimensions are already based on a pre-made tank so no
manual adjustments are needed in between observations
5. OLD DESIGN VS NEW DESIGN
- 2 mm Acryllic
- Body is 10 cm wide
- Base is 5mm
acrylic
Points of
Improvement:
- Body wobbles
- Doesnt capture the
entire field of view
of the tank.
- Phone must be
portrait relative to
the tank
- 3mm MDF
- Body is 10 cm wide
- Base is made out
of 18mm plywood
Points of
Improvement:
- Phones with a height
beyond 15 cm will not
fit in the slot
7. Field of View encompasses both ends of the tank for unhindered
observation
8. SAMPLE FOOTAGE OF A LIGHT-DARK TANK
OBSERVATION
A little misalignment
but the field of view is
ok
9. PHONE SIZE SURVEY ON 5 RANDOM PEOPLE
(Phone slot height 15 cm)
Phone 1: 13 cm
Phone 2: 13 cm
Phone 3: 15 cm
Phone 4: 16.5 cm
Phone 5: 17 cm
(all phone heights measured without case)
3/5 surveyed phones fit the slot height