ATO DIY directly into tank

[Gretchacha]

I need to make a reliable ATO for a 30G rimless tank without a sump. Any ideas?

 

[Projects with Sam]

This may do it?
https://www.thingiverse.com/thing:2857382

 

[Projects with Sam]

or this:
https://www.thingiverse.com/thing:3353247

 

[Projects with Sam]

https://a.co/d/1NtHPWw

 

[MERKEY]

If you want to be really lazy and don't care what it looks like.

 

[Projects with Sam]

this is a part for the above mini ATO
https://www.thingiverse.com/thing:5670569

 

[MERKEY]

 

[Projects with Sam]

go with that link the amazon one is $~3 more!

 

[Gretchacha]

This may do it?
https://www.thingiverse.com/thing:2857382

Awesome project for my daughter who is in a digital electronics course right now!

 

[Gretchacha]

or this:
https://www.thingiverse.com/thing:3353247

Perhaps my daughter can add this to the circuit and I can install it at a lower level as a backup switch

 

[Gretchacha]

I like this gravity flow idea for the QT tank. Wouldn’t be sufficient for the main tank or a vacation, but also a good backup setup idea for a power outage during a vacation. No battery needed

 

[Gretchacha]

Question. What about a Kamoer dosing pump like MikeyMikeMike uses in this video?
I basically have the same set up but smaller.