Aquarium Equip ISTA CO2 Tablet Carbon dioxide 100 TAB Carbon dioxide - Planted Diffuser Tablets

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!

Worst product ever used in my aquarium.. destroyed everything..did exactly what it tells you to do..but the result was creating lots of algae. Half of my plants are dead. Worst decision you going to make. Just go and buy a Co2 kit from somewhere because this will make it worst. It does not even desolve and it's not worth even one star.

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.

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

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.

They seem to work