Lake Ecosystem Quiz

What was used as the substrate in the initial setup of the lake ecosystem?

• Sand

• Clay

• Aqua soil

• Gravel

What was the first step in setting up the lake ecosystem?

• Adding fish

• Filling the tank with water

• Placing rocks and driftwood

• Introducing plants

What role did Ruby the betta fish play in the lake ecosystem?

• She was a queen

• She was a predator

• She was a scavenger

• She was a bottom dweller

How did Ruby the betta fish differ from a male betta?

• She had shorter, streamlined fins

• She was more colorful

• She was less active

• She had longer fins

What was a potential reason for the guppies not reproducing?

• Lack of food

• Low oxygen levels

• Presence of a predator

• Too much light

What did the neocaridina shrimp benefit from eating?

• Fish food

• Crawfish molt

• Plant roots

• Algae

What was Crush the crawfish's behavior after molting?

• She became aggressive

• She ate her molt

• She hid in the plants

• She stopped moving

What was the main reason for introducing neon tetras into the ecosystem?

• To reduce plant growth

• To add a pop of color

• To control algae

• To eat shrimp

What was the purpose of the 3D printed funnel attachment?

• To feed the fish

• To add oxygen

• To control water flow

• To remove debris

What was a significant change in the ecosystem after Crush's death?

• Increase in shrimp population

• Introduction of new fish

• More open swimming space

• Decrease in plant growth