auto top off

I’m building out a fish room for a new 200g system. The issue here is that the ATO reservoir and the tank are in two separate rooms. As I already have a Tunze Osmolator 3155 I planned to use it with this switched power socket and run some speaker wire between this socket and the Tunze through...

Hello! I am starting a a simple 20 gallon long reef tank (dimension are 30x12x12) and I would like to have an ATO. I have looked at quite a few ATO systems, but with no sump I'm wondering if I could add one? If I add the sensor to the tank will surface agitation mess with the sensor causing it...

Posting my 100 gallon mixed reef tank here. I have been at it for years but recently figured out that good lighting means I can grow more corals. Now its time to move the tank to replace the flooring in the house. Maybe I can get some tips on how to improve upon the tank. I have some great ideas.

Hello! I will be going away on vacation in around two weeks for 10 days and I'm considering getting an auto top off system to control the salinity while I'm gone. But there's a catch! My return pump is set to pulse mode and the sump water level changes. Will an auto top system work in my sump...

Hello Everyone! I have a 13.5 gallon reef fluval Evo tank, i was looking for a decent but not crazy expensive auto top off system, ive done some research but I couldn't find anything good. I was wondering if anyone has had experience with one or know a system which is good and decent?

I’ve seen substantial growth of my birds nest but absolutely nothing else. I don’t know if it’s normal but I’ve had 2 hammers, a frogspawn and a torch for about 4-5 months now and I do see new baby tentacles weekly but never any heads splitting. Does anyone else have this issue with Biocube...

AutoAQUA Smart ATO Lite brand new never used it $65 shipped

Bought for my custom reefer build. Brand New Custom Blackout Edition - 10 Gallon ATO Auto Top Off Reservoir - CWT Aquatics 10 Gallon Footprint - 10.5" x 16" x 16" Paid $189 $150 shipped

I am selling this Brand New in Box Tunze Osmolator 3155 Auto Top Off $185 shipped The Tunze Osmolator 3155 is one of the safest ATO’s available. It utilizes an electronic eye sensor to monitor water levels and a backup float switch sensor with an optional audible alarm. The controller protects...

I’ve got a few pieces of equipment for sale. Acquired from a tank breakdown and I don’t need the items. All used about 6 months. icecap ATO - $100 Aqamai KPS wi-if wavemaker w/ original box - $100 AquaticLife 100 GPD RO/DI - $100 - cartridges changed out on 9/6/2020 and only ran about 20...

Looking to buy an Apex Atk version 2 auto top off kit with fmm mod. Can be new or used. Thanks.

Hi everyone! I heard that the auto top off system in the Reefer 750 XXL can be faulty and break and I heard others use 3rd party systems (like Tunze or Neptune). Has anyone else experienced this or have suggestions? I'd hate for my kitchen to flood...

Brand new tunze osmolator 3155 put on a brand new tank last night. I set the sensors up according to the directions and tested it by raising the sensors half a inch above the waterline and let it fill. It stopped before the float sensor was activated. This was last night. I woke up this morning...

Hello, I bought the XP Aqua Duetto, a Auto Top Off (ATO) for compensate the water evaporation from the aquarium. It's a really tiny device, and do exactly what you need. Its also super precise, and despite what the company said about small aquarium and a tiny overflow, it just work perfectly on...

Yeah what the title says. It’s 180 gallon system volume.

Hi all. I was hoping to find some ideas/help in regards to setting up a proper overflow/return in my tank as well as maybe seeing some ideas for a diy ATO resevoir and set up! There will be a pic uploaded with this but as you'll see in it, my tank was used as a certain loop in a fewshwater...

AutoAqua Smart ATO Micro Brand new in unopened box. Decided to go a different direction with my build. Cost me $143 after taxes, selling for $100 shipped.

Hey guys. I wanted to share my solution to a problem I've had a few times since I installed an ATO a few months ago. I haven't seen any threads with this exact fix and I'm a bit new to the hobby, so pardon me if this is common knowledge. I'm using the XP Aqua Duetto as an ATO for my Fluval EVO...

5 Gallon rimless fish tank - Equipment is Ai prime HD+ with goose neck, diy lid, external surface skimmer, homemade stand, aquaclear 70, frag holder, auto top off, some salt, pumps,Automatic food feeder ,nano flipper glass cleaner heaters,jaebo wavemaker ,fish food, magnetic frag rack ,and...

Hi all, I just set up a fluval Evo 13.5 and was looking into ATO's for it. There are so many choices that it's overwhelming. I somewhat narrowed it down to 3 but I was hoping for some expert opinions. The three ATOs I've seen a lot about were the Tunze 3155, autoaqua micro, and the XP Aqua...

Was deciding between the XP Aqua Duetto and the Hydor Smart Level Controller, mostly because the XP Aqua Duetto is on sale. Any opinions?

Hey All- I’m looking for various solutions to hide my ATO tank next to my Display (no room under it due to the sump). Here is my current setup for reference. What creative ideas have you all come up with?

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You heard it right...I’m leaving my tank virtually unattended for 3 months. I am currently 2 weeks into the 3 month hiatus. I’ve already left the tank for a stint of 10 days in the past without issue. Since then, dosing has been dialed in along with most everything else and the feeding has been...

Hi fam, setting up a sumpless 20long in my sons room (link here). Trying to see if this ATO setup will work... comments and opinions please: Trimmed the frame so the sensor magnetic/dry-side can sit flush... wet-side rests right under trim lip at top of tank. Filling tank with RO water...