optical sensors

Hey all, I've had my ApexEl for a while now and it's worked well on my nano. However, I am building a 93 cube and need some help with a DIY ATO. I have an IceCap ATO that has two optical sensors. I plan to cut the ends off the optical sensors and wire them to the Break Out Box but I don't...

Hey all, I've had my ApexEl for a while now and it's worked well on my nano. However, I am building a 93 cube and need some help with a DIY ATO. I have an IceCap ATO that has two optical sensors. I plan to cut the ends off the optical sensors and wire them to the Break Out Box but I don't...

New, unused Pacific Sun Sentry Auto-Top Off with DC pump. This is the ATO that came with my Waterbox aquarium. I'm selling the ATO because I already have the Neptune ATK so this is redundant. Retail for the Pacific Sun Sentry Auto-Top Off kit is $119.99. Link to retail site This unit is...

hoping to pick everyone’s mind. I have a atk unit that I use to top off my tank with lime water. I believe it’s causing a film to form over the lower optical sensor and it’s causing the sensor to read closed all the time. When I go and whipe the sensor with a wet towel it kicks on. Has anyone...