Coral Feeder - Long Acrylic Syringe Tube for Reef/Anemones/Eels/Lionfish and Other Organisms, Accurate Liquid Fertilizer Dispensing

They work perfectly.

Total volume is about 1 - 2 milliliters. Excellent for spot feed corals, blowing sand off rocks. I use mine to make water tests easier

Small tip end which works great for target feeding corals.

1. These are long enough to reach the bottom of my tank and clean up old food or debris.2. It doesnt have much suction power but its just enough for me to do my job so its ok. Sometimes the rubber would fall off but i just basically smashed the rubber onto the pipe more and it really hasnt came off.3. If you can get past the ball falling off, it's good

I may have become a little obsessive with this and keeping my aquarium clean but it definitely works and I also use it for sucking up water to put in my water quality test tubes instead of sticking my hands it there. It is definitely a multi purpose tool for me and works for what I need it to. The bulb can go wonky if I am not squeezing right but maybe I should just squeeze it right. Already purchased another for the new tank I’m setting up!

Works amazing easy to clean and cheap

Works great

This thing (PeSandy Coral Feeder SPS HPS Feeder, Long Acrylic) is awesome. I purchased to feed my coral and nems and it works perfectly and makes the process so much more convenient. It has good suction for allowing food to get inside the tube, the bulb squeezes easily but gently to avoid over feeding, it's long enough so I don't have to stick my whole arm in my tank and you can't beat the price!