Aquatic Experts KloudAway Freshwater Aquarium Water Clarifier - Clears Cloudy Water, Water Clarifier for Fish Tank, Made in USA (250 mL)

Q: Can, this be used on edible animals, like prawn, tilapia?

I don't see any reason why not - I use this with my YBS Turtle and fed her edible animals and had no issues.

Q: Will it clear up tannins in the water caused by the log?

KloudAway will not remove tannins, that the job of activated carbon. - Aquatic Experts

Q: Can you please submit its data sheet ? As it’s held by customs due to it . Thanks

We are happy to send you the Data Sheet. Please contact us through Amazon email support. Here are the steps to contact us. Go to Your Orders. Find your order in the list. Select Problem with order. Choose your topic from list displayed. Select Contact seller. Or the Safety Data Sheet that you need is located on Aquatic Experts website under the Resource tab. - Lexi @ Aquatic Experts