

💧 Clear tanks, happy fish — don’t let slime steal your spotlight!
Fritz Aquatics Slime Out Treatment is a fast-acting, safe solution designed to eliminate stubborn cyanobacteria stains in both freshwater and saltwater aquariums. With visible results within 48 hours and compatibility with diverse aquatic life, it maintains ecosystem balance while preventing future outbreaks when used alongside FritzZyme nutrient reducers.















| ASIN | B09WPSJMW8 |
| ASIN | B09WPSJMW8 |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #23,810 in Pet Supplies ( See Top 100 in Pet Supplies ) #215 in Aquarium Water Treatments |
| Brand Name | Fritz Aquatics |
| Color | Clear |
| Customer Reviews | 4.4 4.4 out of 5 stars (270) |
| Date First Available | March 29, 2022 |
| Date First Available | March 29, 2022 |
| Department | All Ages, Unisex |
| Department | All Ages, Unisex |
| Directions | Safety & Compliance |
| Item Package Dimensions L x W x H | 5.59 x 3.7 x 0.71 inches |
| Item Weight | 1.12 Ounces |
| Item model number | 03990 |
| Item model number | 03990 |
| Manufacturer | Fritz Aquatics |
| Manufacturer | Fritz Aquatics |
| Model Name | 03990 |
| Number of Items | 1 |
| Package Dimensions | 5.59 x 3.7 x 0.71 inches; 1.12 ounces |
| Size | 10 ct |
| Specific Uses for Product | Behavior |
| Target Audience Keyword | Fish |
J**R
Great product and safe for fish.
Been using this product for cyano break outs in my aquariums for years. I really love it, it works well, never had it harm a single creature or plant and thats why I stick with this product. Even my little neocaridina shrimp have never been harmed by this product. I have only used it for green cyano. I can smell it weeks before it shows any visual signs and I use this right away! Great stuff! Decent price!
V**E
It actually worked!!
This product is a DREAM COME TRUE, and it saved my fish! I've had an issue with green slime since last year that I could not get to go away no matter what I tried. I would have to do a water change every other day to keep it from reappearing, and I took everything out, got all new gravel, plants, and decorations for inside the tank and it still came back. I eventually decided that maybe the bacteria got into the glue holding the walls of the tank together, and came to the conclusion to get rid of the tank for an upgraded slightly larger one instead. When the same issue happened with this tank, I was devastated. Its larger and harder to clean, and it kept coming back every couple of days so I was in a constant cycle of water changes. I tried EVERYTHING. Fluval's algeafix, different kinds of medicines, everything I can think of and NOTHING worked. I was going to get a UV light and try that, but I decided to try this first and I am SO glad I did. The first application didn't yield good results. There wasn't much of a change, and I was disappointed. So I did a water change as directed and tried again, and with the second application it was GONE! From my gravel, the plants, the sides of the walls-- like it was never there in the first place. I was amazed. And the best part is that it stayed nice like that for a long time! I only had to change the water every other WEEK instead of every other day, and my fish looked a lot happier and healthier. I'm ordering more of this right now, it's definitely my new go to! I would recommend it to anyone who has tried everything and is on the fence of buying specialty equipment and stuff. It's worth it!
B**1
Works great
I had what I thought was algae for quite a long time. Turned out some was algae, some blue green cyno. I purchased this and three doses later all gone! Shrimp fine! Pea puffers fine! Plants fine. Doesn’t seem to have effects on biological bacteria. Plenty for later but hope I’ll never need it.
R**U
Works Well and Safely
Had a carpet of blue slime growing and read about this product on AI. Received the product that contained separate sealed packets inside the box. Used the recommended amount and changed water after 48 hours. The slime slowly died and eventually disappeared in 72 hours (no scrubbing needed).
C**.
Works pretty well
Treated a case of blue slime bacteria. 3 doses and it was pretty well handled. Great value compared to some of the other treatments
E**H
3 packs cleared it for good!
I had a 10G that was COVERED in this slime. I would manually clean it then the next day it would be worse! Bout this. The first day I used half a pack (1/8th tbs) then the next day (24 hours later) I used the other half. Then waited another 24 hours and performed a water change. After the water change I added another half pack. The next day(24 hours) added the other half then the next day (48 hours) a water change. Repeated this one more time. Used a total of 3 packs and my tank has been completely clear. There’s been complaints about when the slime dies, it clogs filters. I didn’t have this issue. I didn’t manually clean any slime whatsoever, just let it do it’s thing. When I was completely done I did clean my filter, but it wasn’t any dirtier than typical the slime seemed to just disintegrate I didn’t find hardly any in my filter.
E**A
takes time
It will not clean the stains or kill the cyno instantly it takes time I use it three times already and three water changes after two week I say it will work some what but not sure if will eliminate the stains completely it works very slowly but it is noticeable that it made a difference. It will not hurt any of my plants or fish I say it is safe to the aquarium. I will order some more and keep doing water changes and use the stain remover to see if I can eliminate it completely. My aquarium is a 90 gallon with medium amount of fish and large amount of plants high tack tank with bright light co2 and loads of circulation. Is filter by FX4 .
T**H
Effective Solution for Cyanobacteria – Restores Tank Health!
Title: Effective Solution for Cyanobacteria – Restores Tank Health! Rating: ★★★★★ (5/5) I recently used Fritz Aquatics Slime Out Treatment to tackle a stubborn red cyanobacteria problem in my saltwater tank, and I couldn’t be more impressed. Within a few days of applying the treatment, the unsightly red slime was completely gone, and my tank looked significantly cleaner. The product was easy to use, and I appreciated how it didn't harm my fish, coral, or live rock. After dosing, I noticed a clear improvement in water quality and overall tank health. This treatment really worked to target and eliminate the cyanobacteria without disturbing the delicate balance of my aquarium’s ecosystem. What I particularly liked about Fritz Aquatics Slime Out is its versatility. It works for both freshwater and saltwater tanks, which makes it a great option for anyone with a variety of aquarium setups. It’s also non-toxic to fish, plants, and invertebrates when used as directed, so I felt confident using it in my reef tank. If you're struggling with stubborn red slime or cyanobacteria in your tank, I highly recommend this product. It's affordable, easy to apply, and highly effective at keeping your tank clean and free from unwanted algae and bacteria.
Trustpilot
2 weeks ago
3 weeks ago