Is this safe for bettas?

Yes! At the moment, my lonely Betta has been living in a heavily planted 40 gallon tank with some trumpet snails. I have been using only seachem products and they have not not affected him nor the snails, negatively. However use caution when dosing - follow directions. If tank isn’t heavily planted I would half the doses...

Can I use flourish potassium on hibiscus plants?

Would work on any plants I would think.

How many ml do i use for a 72 gal and a 75 gal tank?

10 ml per 60 gal. 2 - 3 times a week per the instructions.

Will it work on watermelons

This product is intended for aquarium use. I suppose it would work in a garden scenario, but is expensive by comparison to garden fertilizers (which are great for plants, but generally kill fish if you put them in an aquarium).

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🌿 Unlock the secret to unstoppable aquatic growth!

GROWTH GUARDIAN - Prevents potassium depletion that causes yellowing leaves, keeping your aquatic plants lush and vibrant.
COMPACT CONVENIENT - 250 ml BPA-free liquid formula fits perfectly in your aquarium care kit without clutter.
POTASSIUM POWERHOUSE - Delivers a potent 50,000 mg/L potassium boost to supercharge your planted aquarium’s growth.
MINERAL BALANCE MASTER - Ideal for low-mineral or fast-growing tanks where potassium can become the growth-limiting factor.
ALL LIFE STAGES FRIENDLY - Safe and effective for all aquatic plant life stages, ensuring consistent health and vitality.

SeachemFlourish Potassium Supplement is a concentrated 250 ml liquid formula delivering 50,000 mg/L potassium, essential for maintaining vigorous growth in planted aquariums. It prevents potassium depletion, a common cause of yellowing leaves, especially in fast-growing or low-mineral water systems. Safe for all plant life stages and housed in a compact BPA-free bottle, it’s the must-have nutrient boost for thriving aquatic greenery.

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Product Dimensions	12.45 x 6.1 x 5.59 cm; 249.48 g
Item model number	466
Pet Life Stage	All Life Stages
Item Form	Liquid
Allergen Information	BPA-Free
Color	standard
Size	__NO_VALUE__
Volume	250 Milliliters
Quantity	1
Specific Uses	Active
batteries required	No
Batteries Included	No
External Testing Certification	Não aplicável
Item Weight	249 g

Seachem Flourish Potassium Supplement, 250 ml

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