Science Fair pt. 2

[SourAngelfish]

I’ve already posted a similar thread in the coral section, and now I’m posting it here. My science teacher wants us to have 3 ideas for our projects incase some don’t work..
I was going to submit.

One to do with Corals

One to do with Fish

And a backup one just incase the others get turned down.

Anyone have any ideas on how non-intrusive/harmful fish experimentation could help with studies?

The experiment would have to be done within the space of two ten gallons or one 30 gallons.

Any small endangered species I could attempt to breed? I’m just not sure it would work.

I’m honestly just collecting ideas so I don’t care how crazy the ideas you send me sound.

 

[Tuffyyyyy]

What about tracking the parameters of two separate tanks? Set up 2x 10-gallon tanks, do one where you change the water every week and the other where you change it every 2 or 3 weeks or something. Your hypothesis could be that doing 15% water change every week is ideal. You could also track costs and stuff..salt mix is not cheap, are you getting your money's worth by changing out the water that frequently?