ISTA Co2 Plant Tablet 100 TAB Carbon Dioxide - Planted Diffuser Tablets by Aquarium Equip

I mix a couple of crushed up tablets in a bucket of water that has been left for the chlorine to dissipate and then pour it on my garden plants that suffer drought the most. This is an every-so-often little treat for them. It really helps them put a little spurt on!

These arexreally good. I noticed an increase in my plants. I am ordering another bottle.

J'ai un aquarium 37 litres et j'ai dû mettre 3 comprimés la première fois pour que mon CO2 soit OK. Le lendemain tout était parfait en vérifiant mon "Drop checker" ... il indiquait la couleur verte !

I have wrestled with black beard algae for more than a year. It was killing my plants and made my tank look awful. In researching how to deal with it one suggestion was to add CO2. I can’t afford a full fledge system, so I tried the liquid. It helped some, but not enough to kill off the menace. When I saw the tablets I figured, what can I lose. In two weeks, I’m noticing a huge difference. My plants are flourishing, the black beard algae is 95% gone! I will certainly be ordering this on a regular bases.

They bubble. Co2 detector didn't react. But I'm not sure that thing worked. But, my plants perked up when I put theses in.