How to make ATO?

[Ryand63]

Hey all, just wondering how to go about making a mini automatic top off for my soon to be 2.2 gallon pico reef. Never made an ATO before so any pointers or help would be great!

[Dustin1300]

Do you have a controller? Easiest way is to use a couple float switches and once level goes low you tell controller to kick a pump on in your top off water.

[Ryand63]

No, don't have anything as of yet, just looking to find out what I need and how to make it first. Is there a good topic on here that shows or explains on how to do this?

[Chris27]

For a 2.2 Gallon Reef, I suggest you keep a Nalgene bottle full of DI water next to it, when the tank is low, pour some in.....no sense in nuking that one out for such a small tank. Float switches, relays, and reservoirs sitting close by or in the tank will end up being an eyesore and take away the beauty of a tiny reef sitting on a bookshelf.

[seapug]

I don't think there's a float switch small enough to put in a 2 gallon tank without looking ridiculous. If the tank has a false back/overflow return or a sump it might be possible using one of the off the shelf systems like a JBJ ATO.

[Sk8r]

I've actually seen one: this is from one of our sponsors: http://www.avastmarine.com/ssc/do/product/Top-off-Kit

[Dustin1300]

Thanks for the link Sk8r. Had never checked out that sponsor's site and they have some nice equipment...

The one you linked is just the sensor so you'll still need a pump and tube holder too.

[Sk8r]

true: I use a mj 1200, but I have to lift mine from the floor. A smaller pump for a same-shelf ATO reservoir, which can be cleverly disguised as a vase on a bookshelf. Just be sure the glaze is food quality.

[Ryand63]

Yeah thanks for the link Sk8r. and i guess you all are right, It seems dumb to even worry about it, I'll just keep continuing keeping a thing of water handy. Thanks!