The patented nano bubble technology behind O2 Grow allows you to maximize oxygen supplementation through a process known as electrolysis. O2 Grow works by taking advantage of the electrolysis cycle at a molecular level, separating the oxygen from hydrogen when electric current passes through an ion-containing solution or a liquid, such as water.

As an air stone alternative, O2 Grow helps increase your nutrient uptake by delivering 50% more dissolved oxygen than traditional air stones. In fact, O2 Grow’s products can increase oxygen saturation for indoor and outdoor growing methods such as: deep water culture, drain to waste or surface watering.

More info: https://www.o2grow.com/why-o2-grow/

вот я из зажимов для бумаги сделал такие кошки

Психологический метод решения задачи