What can i do with this?

[Rookums Reef]

I'm thinking gravity fed something
I have 2 tanks in the same room, a 40b and a 90. Any way to do a kalkawasser stirrer or ATO?

 

[vetteguy53081]

I'm thinking gravity fed something
I have 2 tanks in the same room, a 40b and a 90. Any way to do a kalkawasser stirrer or ATO?

Nice mixing container with valve on bottom to fill bucket with pre-made water
These are Not cheap