Tetra Algae Control Aquarium Water Treatment, Controls Algae in Aquariums, 1.69 oz.

Shalom. as long as you read the directions it's pretty straightforward and understanding the size of your tank. the positive about this is that it actually does prolong the water change or rather than need for a water change. however it can also make you lackadaisical about cleaning the tank as you can get completely lost in time because the water looks clear. I noticed it was over a month before I changed the water and the only reason why I changed it was because I noticed that discoloration in the sand and not actually on the glass or even that much in the water.

Easy to use. Instructions are on the bottle and easy to understand. It has had the algae under control since using it.

This works really well in a variety of allgaes . Just be sure to do the water change after treatment or your fish will die.

the price is amazing and delivery to my door it took a extra day because of some reason but was delivered first thing the next day early was so awesome.

Hey!!! This works when you leave the light off!! Just a couple days! Only turning the light on when FEEDING. Then right back off! Crystal clear!! Sorry algae eaters!!

easy to use and works well.

This product helps to clear out algae from our fish tank! Easy to follow directions

Easy use and very affective safe for fish

If you want to kill all your fish this is the perfect product for you. We have a 20 gallon tank and only used enough to treat 12 gallons. It worked great cleaned the tank up so nicely and then within 24 hours it was killing all the fish. This should not be on the market. This is Litterally poison for your fish.

this said it was safe for snails and it is not. I had to remove my snails and drain the aquarium because it killed 2 of my big snails and i have no clue how many little ones. so i wasn't taking a chance with the rest of them. not sure if it actually works at clearing up the water tho.