FritzZyme® 7 contains specific strains of live nitrifying bacteria proven to reduce fish loss due to toxic levels of ammonia and nitrite. Nitrifying bacteria can take weeks to naturally establish colonies in new aquariums while ammonia and nitrite can reach lethal levels in only a few days. FritzZyme® 7 provides the proper balance of bacteria proven to rapidly seed biofilters, greatly reducing the natural cycle time allowing for safe, immediate addition of livestock.
Fritz Industries was the first company to pioneer commercial-scale cultivation of nitrifying bacteria and has remained one of only a few in the world with continuous production for over 30 years. FritzZyme® 7 may be added to new tanks or established systems any time the biofilter needs fortification including: after water changes, aggressive cleaning, adding new livestock, medicating or changing filter media. FritzZyme® 7 contains live freshwater-specific species of nitrifying bacteria.
For new systems, dose 4oz (119 ml / ½ cup) per 10 US gallons (38 L). For a large livestock system, new system dosage may be safely increased up to 10x.
For established systems, use 2 oz (60 ml / ¼ cup) per 10 US gallons (38 L).
NOTE: Live product. Do not freeze or overheat. Store in a cool, dark place. Use before expiration date.
Overall rating: 5.0 / 5 from 147 reviews.
We have used all the Fritz products to get our 75 gallon tank running. We were unable to complete the nitrogen cycle with 'Big Box' products. Once we started with Fishless fuel we were on our way. The Fritz Complete, and Fritz Zyme 7 gave us successful results. We now have a healthy environment for our new Freshwater fish. Your Videos were and excellent resource for learning more about our new family hobby. Thank you!
I was shocked how fast this sped up the Nitrogen cycle! This product definitely shaved off a good couple weeks of waiting time for the tank to finish cycling. I will definitely order more to have on hand for when I need to do maintenance or set up new tanks.
With the help of Fritz 7 I was able to cycle and make this 300 gallon aquarium safe for fish instantly by adding a little everyday for the first month. I really like this product which was introduced to my by John and Lisa Hutchison of KG Tropicals .
I just set up a new Aquarium and I exclusively use this product. Certainly is a lifesaver for my fish help cycle the tank right away. I use it in conjunction with an ammonia Alert to make modifications works fabulously well. thank you, John and Lisa for introducing me to this outstanding product. I love it and you’re right Fritz is the best.
When you have the special cichlids which I have you wouldn’t trust any other product but ZritzZyme 7 Freshwater Live Bacteria to keep them safe, healthy and as beautiful.
Sure works great in these aquariums
Videos are better than words. As you can see from the resent video here my tanks and fish look great because of this outstanding product.
Our new 75 gallon, Fritz helped with the nitrogen cycle and several of the plants are from KG.
Works great
Product works great it help cycle my fish tank
Product works as described. Will buy again.
It is the only thing I found that actually works. The rest is junk.
My son & started fish keeping together as a hobby. This YouTube channel called, “Keep fish keeping” inspired us which is where I first heard about Fritz. After doing a ton of fish keeping research, we set up out first tank. We added an Eco Bio Block, a splash of API Quick Start, and Aqueon Pure Bacteria supplements but only let it cycle for 4 days because I thought the products would keep the perimeters healthy. Within 2 weeks of adding fish, there was clear slim stuff growing. The water was dark & cloudy & some fish died. I did a 50% water change which helped for a few days, but conditions worsted. I decided to start over and the only way I knew how to do that if you already have fish, is by using FritzZyme 7 Freshwater Live Bacteria. So we got to work removing the fish & dismantling/cleaning the tank for a complete do over so to speak. Once finished, we added FritzZyme 7 Freshwater Live Bacteria I can’t tell you enough how much of a difference it made. Fish are happy. Tank is pretty. Perimeters are healthy.
I have used this on my 29 gallon aquarium and it seems to have helped it get a great jump start on the biological filter. The only thing I lost in this aquarium were two Cory cats that were really small to begin with. Also losing a couple was due to my impatience and only letting the aquarium run for 24hrs with the Fritz then putting fish in was not a great idea. But on the bright side out of 21 fish I only lost 2.
Cycled my tank very quickly with help from this product, no others seem to be as efficient!
Great product. Use it for this tank as a jump start. Recommend for people to use.
Thank you so much you made things so much easier. I'm new to the hobby as far as large aquariums I've always had bettas in 5 gallon tanks after my Willie passed I decided to go in for a 10 gallon aquarium but I wanted to do it right so I watched you everyday for almost 2 weeks so I would have everything down pat. And today after 3 weeks and testing vigilantly every morning my water parameters are at zero ammonia 0 nitrite and 5.0 parts per million nitrate. Thank you for all your advice, And tomorrow I go and get my fish. Three male Guppies, two red tail platys and three corridors. PS.. You never can be too old to start a new hobby I'm 74.... Again thank you! Pps.. Also 2 Nerite snails.
LOVE IT!!!!!!
This product does what it claims to do. Helped my cycle this planted dark water tank. John and Lisa shipped it fast. This tank is ready for my next purchase from KGTROPICALS - a betta!
Everyone is doing great!
This product helped me cycle the tank faster than I have ever cycled love this stuff
This have helped me keep my Rummynose Tetra alive, happy and a healthy tank.
It's just what I wanted to add to my tank to keep my tank with healthy beneficial bacteria after every water change. just incase any drop of B B. my fish are important and received it on time and in good condition.
Added this along with Fishless Fuel on November 15, and had fish in my tank by December 4. The tank cycled a week prior but decided to wait a few more days just to be on safe side. Worked just as it should have. Ammonia spiked then went down, nitrite spiked and went down, until I had 0 ammonia, 0 nitrite, and about 20 ppm of nitrate. Highly recommend!
I used this to help restart a tank after I changed the substrate from gravel to sand. Worked wonders fish ate happy campers.
My kids were given a fish, and I jumped on YouTube to find help. And came across KGTropicals. I watched so many of their videos. I then purchased some of the items in their 10 aquarium Chemicals every fish keeper should have. As we ended up buying more fish and another tank. This made our take clear and not look cloudy at all. I absolutely love it. It's definitely a must have.
The product is a very good product will be ordering again.
10/10 experience. Will definitely be ordering more from John and Lisa in the near future!
It seemed to do just what I needed! I was a bit surprised that it took so much to reach correct levels, but otherwise good stuff!
Such an excellent product. Recommend to anyone that is fish keeping
I have been watching these guys on youtube for quite some time now, probably one of the channels i watch the most. I gotta say ordering from them has been a good experience, fast shipping and was package very well. Cant wait to order again!
This is a great thing to have and supply in case your nitrate and ammonia spike. Just another handy tool to have ready in the fish room.🙏
I used this product to restore a stalled cycling. I put in fishless fuel and then fritz 7 It took a week for ammonia to reach near 0 and for the first time the nitrite level began to decrease, and also nitrite. after first making the planted aquarium I'm exited and will add fish soon..
Hassle free with fast shipping. Would order again.
I was extremely impressed by how quickly I received my order! I put in the order late on Saturday night and received it on Wednesday!! No lag time whatsoever! Haven’t set the aquarium up completely yet so I can’t comment on the product yet, but the store has more than exceeded my expectations!
Excellent product will buy again
Good stuff
Great product with great delivery and customer service
Love KGTropicals!
Works well
