can this clear a green tank ?

This product will not remove the green algae from the tank. It will be better to clean the tank, and then use green away, or algae minus products in the freshly cleaned tank. those products will keep the algae from growing. This product will make the water more clear by combining small contaminating particles in the water and then those gets filtered out.

Can this be used with an under gravel filter

I have an under gravel filter & use Tetra Crystal Water. Have used it for 3 years without any problem. Hope this helps.

Will this help with white bits float in my fresh water tropical tank

My not tropical fish sorry can not answer your question.

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Tetra Crystal Water Clarifier, 100 ml

Product ID: 50040062

Details

Brand
Tetra
Item form
Liquid
Item weight
0.1 Kilograms
Liquid volume
100
Number of Packs
1

💧Crystal clear water within 6-12 hrs

🧪Safe for all freshwater aquarium inhabitants

⏱️Fast acting: visible results in 2-3 hrs

Description

💎 Make your aquarium the envy of every fish lover with crystal-clear perfection!

RAPID CLARITY BOOST - Transform murky water to crystal clear in under half a day
COMPACT CONVENIENT - 100 ml size ideal for quick treatments, with larger options for bigger tanks
SHRIMP SAFE ASSURANCE - Trusted by enthusiasts for mixed tanks with sensitive shrimp species
PARTICLE BINDING TECHNOLOGY - Binds tiny particles into filterable clumps for effortless cleaning
UNIVERSAL FRESHWATER FORMULA - Perfectly safe for all freshwater fish and plants, including delicate species

Tetra Crystal Water Clarifier is a fast-acting liquid treatment designed to clear clouded freshwater aquarium water by binding suspended particles for easy filtration. Safe for all freshwater fish and plants, it delivers visible clarity improvements within 2-3 hours and full crystal-clear results in 6-12 hours. Available in 100 ml and 250 ml sizes, it’s trusted by hobbyists for maintaining pristine aquatic environments.

Specifications

ASIN	B005P7ES8S
Allergen Information	Allergen-Free
Best Sellers Rank	46,967 in Pet Supplies ( See Top 100 in Pet Supplies ) 507 in Aquarium Water Treatments
Brand Name	Tetra
Customer Reviews	4.6 4.6 out of 5 stars (393)
Global Trade Identification Number	04004218144071
Included Components	See Description
Item Form	Liquid
Item Type Name	Tetra CrystalWater, for Crystal Clear Water Fish Tank, 100 ml
Item Weight	0.1 Kilograms
Liquid Volume	100 Millilitres
Manufacturer	TEZSY
Manufacturer Part Number	T272
Model Number	T272
Number of Items	1
Number of Packs	1
Pet Type	Fish
Product Warranty	Manufacturer Fault
Target Species	Freshwater Pond Fish
Unit Count	100.0 millilitre

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