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⚡ Elevate your tank’s vibe with precision pH power!
Seachem Alkaline Buffer 300g is a phosphate-free powder designed to precisely adjust aquarium pH to 7.2-8.5 while boosting alkalinity, ensuring a stable and healthy aquatic environment trusted by professionals and hobbyists alike.

| ASIN | B0002A5VYI |
| Allergen Information | Gluten Free |
| Best Sellers Rank | 9,962 in Pet Supplies ( See Top 100 in Pet Supplies ) 125 in Aquarium Water Treatments |
| Brand | Seachem |
| Brand Name | Seachem |
| Country Of Origin | Italy |
| Customer Reviews | 4.7 out of 5 stars 2,390 Reviews |
| Global Trade Identification Number | 00000116023603 |
| Included Components | Aquatics, Maintenance and Supplies, Aquarium-Plant-Fertilizers |
| Item Form | Powder |
| Item Type Name | Aquarium Conditioner |
| Item Weight | 11.2 Ounces |
| Item form | Powder |
| Item weight | 11.2 Ounces |
| Liquid Volume | 300 Millilitres |
| Liquid volume | 300 Millilitres |
| Manufacturer | Seachem |
| Manufacturer Part Number | 236 |
| Model Number | 001124 |
| Number of Packs | 1 |
| Pet Type | Fish |
| Target Species | Fish |
| UPC | 000116023603 |
| Unit Count | 300.0 gram |
| Unit count | 300.0 gram |
L**A
Works efficiently and perfectly
This product works extremely quickly and perfectly. Used in my axolotl aquarium to raise the pH and KH as pH was 6.6 and KH was blank zero, used this as within a few hours, pH was raised to 7.4 and KH was 4. I then re dosed 1 mL as a slight nudge and again, was a pH of 7.6 and KH of 5, perfect for my axolotl. Seachem is a brand I will always trust!
R**.
Great stuff
Great stuff, I just used a little a day to move my tank to where I wanted it. Worked perfectly
J**R
Effective
Great for increasing KH in shrimp tank
K**6
Does what it is supposed to
My tap water has a very low KH (1d) and a reasonably high pH (7.5). Because of this the pH can be unstable in my 125 litre community tank. I use the Alkaline Buffer along with the Acid Buffer to raise my KH by 2 or 3 degrees without affecting my pH. The Buffers are easy to use and last for quite a while, depending on what tub size you go for. All of my fish, including the sensitive German Blue Rams, are happy and healthy.
A**K
Does the job if you are patient
I have struggled with getting the pH of my shrimp/snail tank up, and have tried a lot of online tips to no avail. About 4 days of using this, dosed as suggested, and my pH is finally increasing! It won't be an instant result, but within a week I would expect good results. Tub has plenty in it for the price. I only have a small 20L tank and this will last me forever.
R**B
Does work
Did the job. Noticed my tank went low on PH. Two treatments later, 2 mins of effort .... aquarium si back to healthy 7.6ph.
G**6
Great for maintaining the correct PH
Always use this when doing water changes as I am in a soft water area, a lot cheaper than my nearest aquatic shop, water is always clear, and the PH perfect, I always put it in the bucket before adding the clean water, it dissolves better that way, have not noticed any smell from use.
M**S
Works
Works as intended. Tested water the next day and water was perfect. Good value as only use a tiny bit. Fish appear happy and no deaths. Water remains clear.
C**W
Praktisch und einfach in der Anwendung
Ich habe das 70 g Alkaline Buffer gekauft, um den pH-Wert in meinem Aquarium zu stabilisieren, und bin sehr zufrieden. Das Pulver lässt sich leicht dosieren und löst sich schnell im Wasser auf. Ich konnte direkt sehen, dass der pH-Wert sich stabilisiert hat, was meinen Fischen und Pflanzen zugutekommt. Besonders gefällt mir, dass es genau die richtige Menge für kleine bis mittlere Aquarien ist und gut aufzubewahren ist. Ich habe mich vorher ein bisschen unsicher gefühlt, aber die Anwendung ist super unkompliziert und zuverlässig. Fazit: Für mich ein unverzichtbares Hilfsmittel, um das Aquarium gesund und stabil zu halten – einfach, effektiv und praktisch.
L**N
Doesn't really work
It lowers it for a bit but then ph goes back down.
F**R
Produto excelente
Produto excelente! Preço alto, porém, tem um excelente rendimento. Vale a penas comprar!
F**.
Ottimo
Ottimo
P**A
Muito bom
Muito bom
Trustpilot
5 days ago
1 month ago