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I use the Kamoer One 2. It's been fine.I use Kamoer ATO’s and haven’t had any issues. Not a fan of Neptunes ATO (I know it’s not cheap but just giving opinion). Ive heard great things about Tunze
Yes.Do you think I could get away with the tunze nano?
No.Do you run all of them at the same time on the same tank?
This.I've been using one from Autotopoff.com for 10 years with no problems at all. I don't think you'll find a better one. You can use any type of pump with it. Aqua lifter or MJ pump.
Ive tried smart ATO units and they simply quit performing after some time. It appears you get what you pay for and the risk is overflooding, drop in salinity and not adding water at all. Tunze seems to be the most reliable at a cost and I focus on reliability over costs. After buying two at $65 and then a more reliable unit, in essence I paid over $220 for three units with two dead and might as well have bought the reliable $100 unit to begin withI need an auto top up for my 250 litre Red Sea tank. The ball valve thing sucks, I’ve replaced it so many times, it’s so unreliable. Just looking for a better one. Not looking to spend too much money on it because there are some other bits I want to upgrade on the tank as well! .. and maybe buy more coral..
I use water bottle top offs on nano tanks. I love the peace of mind knowing it will never dump and salinity stays rock solid, but filling them up every couple of days is definitely a bummer hahaPersonally I've has some issues with salinity swings from them so I tend to shell out a little extra. But If you want to go real budget there's the water bottle ones!
The 3155 is designed to run a max of 3 min and then it will shut off, even if the water level is too low. This limit is likely much lower on the Nano version. It's a great feature and it has the float switch as a backup. Unless someone has their ATO reservoir set up incorrectly and a siphon develops, I've never heard of one failing by adding too much water.The biggest issue with getting a cheep ATO or honestly an expensive 3155 is it only has to get stuck on 1 time and you are screwed. Make sure you have a separate high level sensor in your sump just incase and be able to shut it down if it gets stuck on. Fresh water will kill everything so fast even if you catch it quickly and change water and get it back to 26 chances are all your acros are toast and other sensitive corals and fish are going to struggle to get better. If there is one place to not skimp is the ATO. There is a reason the Tunze has basically been the exact same for almost 10 years. I think the only real change was adding optical and mechanical sensors in that time. I would love to rely on an old school float valve ATO and man Jake used to get me feeling so confident that it’s awesome and never fails and my tank is already set up for one but I don’t think I can do it. I would like to try Red sea’s new ATO. It has low water sensors, high water shut off sensors and a back up. Cheeper than the Tunze but still too new for such an important item. Here is a question? Should you replace it after a while like heaters? Mine has Been working fine for 2 years now. Should I get a new ATO on my terms not after the fact? I swap heaters every couple years just in case. BRS advocated for that a lot, but they sell them so who knows. I know you can get parts for the 3155: anyone else get new ATO’s every couple/few years just in case?
Just look it happensThe 3155 is designed to run a max of 3 min and then it will shut off, even if the water level is too low. This limit is likely much lower on the Nano version. It's a great feature and it has the float switch as a backup. Unless someone has their ATO reservoir set up incorrectly and a siphon develops, I've never heard of one failing by adding too much water.