If you are looking for an affordable dosing pump option, the Kamoer x1 pump is just the thing for you. They cost $60 each, and you can control them with your Smartphone via their app. Set it up to dose manually on demand, or dose frequently each day. If you have multiple pumps, they know not to dose at the same time -- if you set them up correctly they will delay long enough to avoid mixing elements. I've been running one for over 6 weeks myself, and it's worked out great.If you want to avoid shipping, you are welcome to pick up your order in person.https://www.melevsreef.com/product/kamoer-x1-bluetooth-dosing-pumpView attachment 7624