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

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.

I tried this product because I thought it was good but when I but it in my 10 gallon tank all my plants Died. I when the from having green plants and a nice carpet to alll my plants dying and the steams came off easy like wet paper. And made a mess with dead decaying leaves everywhere and made it hard to clean. On my 40 gallon tank it made my leaves greener and healthier. So I would not use this on smaller tanks. Now I have no plants in my 10 water tanks so mad because it took me so long to grow those plants to that length specially the carpet.

Good for small tanks.

I was hoping that they would like give some fizzle to water and like expand and give some CO2 in the air but they're more for going in the water for a plant aquarium and I wanted them for a grow tent but they seem like they would work for what they're supposed to be for I just got them for the wrong thing

I’ve been adding 3 2x a week into my 30 gallon and 2 2x week in my 20 and the entire tanks are benefitting. Water quality, plants, and fish all look healthier since I started using these.

It says on the package that it's supposed to To take an hour to 2 hours to dissolve.Mine dissolves under 20 minutes.So I think I got a bad batch of the pills

Good source of c02 for aquarium plants, just drop a couple in the filter thats it! Got here fast too!

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 !

They seem to work

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.