How much would ou need to use in a 90 litre tank...?

I would say between 1-2 thread in the cap. Each thread works out to 50L.

Im looking to actually encourage algae growth in my tank, will this help with that?

It depends. With few fast growing plants in the tank then Flourish will tend to encourage algae growth, sometimes very quickly. But it can also unbalance bacterial load in filters if over dosed so go carefully. You might also find that black hair algae grows quickly ... not always a good source of food for fish, snails or shrimps if that’s what you want algae for.

Hi. Is this safe to use in newly set up (4weeks) aquarium. Java ferns melting. Thanks

If is newly set up u need tank to go via cycling all plants at first melt before settling in. Keep eye on your tank. I would not add anything but if you really want should be OK

If I does 4ml for my 200 litre is that once a wk and is it necessary to Refrigerate it? Thanks

Depends on how many plants and fish you have, I have a lot of fast growing plants in my 250 litre tank along with slower growers such as anubias, so I add 2ml everyday. Daily is better than dosing 1-2 times per week...Analogy: would you rather be fed 1-2 times per week or daily? As for keeping in the fridge: Flourish contains nitrogen, phosphorus, vitamins and amino acids and can get contaminated by stuff in the air when opened which can cause bacteria, mould, or fungus to grow inside the bottle. Seachem recommends putting it in the fridge 3 months after opening, I put it mine in straight away. If you start to get a lot of algae growth just cut down on the dosing.

Seachem Flourish Comprehensive Supplement 500 Ml

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Description

🌿 Elevate your aquarium’s green game with every drop!

CLEAN FORMULA - No nitrogen or phosphorus overload—perfect for balanced growth
TRUSTED QUALITY - Highly rated with 4.6 stars from nearly 10,000 plant enthusiasts
PRECISION DOSING - Easy 5 mL capful dosing for every 20 gallons, twice weekly
GLUTEN FREE SAFE - Allergen-free formula ensures safe, worry-free aquarium care
COMPLETE NUTRIENT BOOST - Delivers essential micro and trace elements for vibrant aquatic plants

Seachem Flourish is a 500 mL liquid supplement designed to provide essential micro and trace elements to planted aquariums without adding nitrogen or phosphorus. Trusted by thousands, it supports healthy, vibrant aquatic plants with precise dosing and a clean, allergen-free formula.

Specifications

ASIN	B00025696M
Allergen Information	Gluten Free
Best Sellers Rank	7,743 in Pet Supplies ( See Top 100 in Pet Supplies ) 86 in Aquarium Water Treatments
Brand Name	Seachem
Customer Reviews	4.6 4.6 out of 5 stars (9,740)
Global Trade Identification Number	00000116051309
Included Components	fertilizer
Item Form	Liquid
Item Type Name	Seachem Flourish 500Ml
Item Weight	544 g
Liquid Volume	500 Millilitres
Manufacturer	Seachem
Manufacturer Part Number	075231
Model Number	67105130
Number of Items	1
Number of Packs	1
Pet Type	Fish
Target Species	Aquatic Plants
UPC	604765291576 000116051309
Unit Count	500.0 millilitre

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14.97 OMR

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In stock

Sold byAmazon OMANDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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TrustScore 4.5 | 7,300+ reviews

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Seachem Flourish Comprehensive Supplement, 500 ml

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Description

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