I added these two items to my rig in the past, a check valve and syringe for a no leakage setup. Like the hyper restore.
https://www.amazon.com/Pawfly-Aquarium-Valves-Plastic-Non-Return/dp/B01N92AXHF
https://www.amazon.com/Frienda-Scientific-Dispensing-Multiple-Measuring/dp/B07JZ2HMJ7/ref=sr_1_3?dchild=1&keywords=feeder+syringe&qid=1599355935&sr=8-3
Amazon has scientific ones. https://smile.amazon.com/Frienda-Scientific-Dispensing-Multiple-Measuring/dp/B07JZ2HMJ7/ref=sr_1_2_sspa?crid=2LOCHZ77SY627&keywords=syringe&qid=1559068039&s=gateway&sprefix=syr%2Caps%2C175&sr=8-2-spons&psc=1