

💧 Elevate your aquarium’s health with every drop!
Seachem Replenish 500ml is a scientifically balanced mineral supplement designed to restore General Hardness (GH) in RO/DI treated freshwater aquariums. By replenishing essential soft and hard minerals, it prevents osmotic stress and supports all life stages, ensuring a thriving aquatic environment trusted by hobbyists worldwide.

| ASIN | B0027JEIE6 |
| ASIN | B0027JEIE6 |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #35,515 in Pet Supplies ( See Top 100 in Pet Supplies ) #350 in Aquarium Water Treatments |
| Brand Name | Seachem |
| Color | clear |
| Customer Reviews | 4.7 4.7 out of 5 stars (492) |
| Date First Available | June 8, 2005 |
| Date First Available | June 8, 2005 |
| Department | Unisex-Adult |
| Department | Unisex-Adult |
| Directions | Add 5 mL (1 capful) Replenish™ to 40 L (10 US gallons) to raise GH by 1 meq/L (2.8 dGH). Recommended restoration level into DI or RO water is 1-2 meq/L which is 5 mL per each 20-40 L (5-10 US gallons.) |
| Included Components | Seachem Replenish 500ml (16.9oz) |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 7.6 x 1.9 x 1.5 inches |
| Item Package Dimensions L x W x H | 7.6 x 2.4 x 2.32 inches |
| Item Weight | 250 Grams |
| Item model number | 1473 |
| Item model number | 1473 |
| Manufacturer | Seachem Laboratories, Inc. |
| Manufacturer | Seachem Laboratories, Inc. |
| Material | Plastic |
| Model Name | Seachem Replenish 500ml (16.9oz) |
| Number of Items | 1 |
| Product Dimensions | 7.6 x 1.9 x 1.5 inches; 8.82 ounces |
| Size | 500 mL |
| Specific Uses for Product | Active |
| Target Audience Keyword | Fish |
| Warranty Description | Warranty |
J**L
Perfect addition, supplements my RO water package for multiple, dirted, planted FW aquariums.
Excellent product like all SeaChem products I've used. Consistent reliable results.
T**N
Great mineral source
Works very well for putting mineral back in the water after the R O system takes them out
A**S
Works
If you using RO / DO water for your tank . You need this product . Im already try it. And its absolutely works . Safe for fish .make your water healthy .
B**R
Worth the money, small improvements
I recently got fish and needed to make sure GH of my tank's water was set properly. Water in my area is very soft and not suitable for the type of fish I wanted. This Seachem Replenish solution was very big and will last me at least a year as I don't even need more than 10ml to get my 10-gallon fish tank to the correct parameters. My only downside is that the bottle does not come with its own form of measuring so I was forced to find my own measuring cup. It would be nice if it came with a small one attached to the lid as my other fish products did. I suggest buying this if your only problem with your tank is adjusting the general hardness levels of the water.
V**T
Good reliable product
If you're planning in using RO water this is a great option. Use this to give consistent water parameters will go a long way for the health of your fish.
E**K
The dose info I wish they would have provided
Our well water had very high nitrates, so we had to buy a RO unit for our new drinking/tank water. After going through the R/O unit our water came out with 7-9 TDS measured with a tds pen. I tried following the direction on the bottle, but the are pretty difficult to understand. Most people are looking to set their GH to a number or degree (1-14, with 6 starting to become "hard" water). The bottle instead listed another weird measurement which you then had to then convert to the degrees. I couldn't figure it out, and ended up mixing and testing a bunch of my own ratios to find the right Gh. This cost me a 10$ API test kit, and about two hours of tedious testing. Definitely not fun. The golden number I would've paid to know (instead of having to convert it from the weird number they give you)... is that 1 capful in 4 gallons makes the water 10 in hardness. More helpful: My straight RO water had 10 TDS, after going through all the tests to figure out my hardness was at 10ppm, my TDS was now at 250. So if you buy this, instead of getting the API kit and doing the annoying tests, get a 10$ pen and get your TDS to 250 for 10 hardness (this is ONLY assuming you start out with 0-10 TDS from RO water). AFTER you get the TDS to 250 by adding ONLY replenish, then you can add a buffer if you want to raise your Kh. I use 1/2 teaspoon of Seachem Alkaline buffer per 4 gallons to get 6-7 Kh.
A**L
Great stuff for readding minerals to RO water
Great product I use 2.5mL per 5 gallons of RO water along with 2.5 mL of Seachem Stability, 10 drops of Seachem Prime, and 10 drops of Vitachem. Then, I place in gallons jugs for water changes ppm is 67 perfect for Bettas. I also add 2 oz. Of Almond Leaf extract still only 67 ppm after 7 days without water change
D**.
I buy all Seachem brands now I’m a true believer
OMG I tried this yesterday. I’ve been having so much problems with my Bio orb aquarium the round tanks in keeping the cloudiness down and this is the only thing that worked and didn’t kill my fish. I have high bread gold fish Moor and Oranda and panda they are a bit more tempered than the regular old gold fish. All of this product brand I switched to from trying others the other brands just killed my fish. I am a true believer in the Seachem brand product now I’m buying everything they have to treat my fish anymore. I have raised fish all my life and raise big koi also this brand is easy to use and Isn’t harmful to your fish . I’m a true believer now. Seachem brand all the way
V**Z
Ottimo
M**K
It does what it is supposed to do... it puts back the minerals that put your GH back up in RO/DI water. You will still need to bring the KH up with the different minerals in a different additive. Seachem makes these too... but that’s another story. 🙂
F**E
Soddosfa pienamente le aspettative
L**A
Good product to add salts back in super soft water. Make sure to test hardness and to be consistent with amount you add in per water change to prevent adding in too much salts.
A**R
Just does what it says it does
Trustpilot
1 week ago
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