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BEGINNER: Use 2.5 mL (half a cap) for each 80 L (20 US gallons) once or twice a week or as needed in response to signs of phosphorus deficiency (e.g. stunted growth, plant dark green).
EXPERT: The beginner dose raises phosphorus by 0.05 mg/L (0.15 mg/L phosphate). The ideal phosphate level will vary, but generally ranges from 0.15–1.0 mg/L. To target a specific phosphate increase, dose according to the following formula: 0.8vp=m, where v= volume of tank in gallons, p=desired phosphate increase and m=volume of product to use in mL. For example to rais
£10.49
In stock
Product Code: 46714041
Phosphorus is one of the main three macro nutrients (nitrogen, phosphorous, potassium: NPK) required by plants and can often become the limiting factor to growth in a ?ourishing system. Flourish Phosphorus™ is a safe solution (4,500 mg/L phosphate) of potassium phosphate that takes the guess work out of phosphate dosing. Unlike competing products that mix nitrate and phosphate in a fixed ratio, Flourish Phosphorus™ (being nitrate free) allows you to dose phosphorus according to the needs of your plants without the risk of overdosing nitrates. When used as directed, Flourish Phosphorus™will enhance and accelerate the growth of aquatic plants without enhancing algae growth. For maximum benefit, use with Flourish Nitrogen and Flourish Potassium. Flourish Phosphorusis safe for invertebrates such as shrimp.
Standard Delivery (for online orders only)
FREE for online orders £39.99 and over
£4.99 for online orders £39.98 and under
£7.50 - £12.20 additional charge for orders being delivered to North Scotland, Scottish Highlands & Island delivery zones (also charged on orders £39.99 and over).
Orders containing one or more items labelled as "Local Delivery" do not qualify for our Standard Delivery and are charged at a different rate (see below, these orders do not qualify for free delivery if over £39.99).
Standard delivery is normally delivered in up to 3 working days, Monday - Friday (Excluding Bank Holidays & Public Holidays) for online orders received before 1pm. Orders received after 1pm may still be processed that day and delivered within 3 working days but in most instances will not be processed until the next working day and then delivered within 3 working days from then. This time frame is a guide and unfortunately not always achiavable.
Northern Scotland, Highlands & Isles Delivery Zones
Isle of Wight & Scilly Islands
The following postcodes will incur a £7.50 delivery surcharge on top of standard delivery charge:
PO 30-41 | TR21 - TR25
North Scotland & Highlands
The following postcodes will incur a £10.00 delivery surcharge on top of standard delivery charge:
AB31 - AB38, AB41 - AB99
IV1 - IV40, IV52, IV53, IV54 & IV63
KW1 - KW14
PA21 - PA38
PH4 - PH41, PH42, PH43 & PH44
Isle of Man, Scottish Isles & Channel Islands
The following postcodes will incur a £12.50 delivery surcharge on top of standard delivery charge:
IM | GY | JE | HS | ZE
IV41 - IV49
KA27 & KA28
KW15, KW16 & KW17
PA20, PA41 - PA49, PA60 - PA78
PH42, PH43 & PH44
Please note that delivery to these locations may take additional time to be delivered and may be sent using an alternate courier.
Large & heavy Items
Some larger, heavy or bulky items may not be eligible for our standard delivery and may take take longer to process - This includes examples such as but not limited to pools, furniture, and large garden products.
In store purchases
Products purchased in store are not eligible for our standard online delivery services and are not free if £39.99 or over. Availability of, and prices for delivery of in store purchases will vary depending on the items purchased and store purchased from. Delivery for items purchased in store is also limited to the local area of the store the item is purchased from and these items are not eligible for delivery to Northern Scotland, Highlands & Isles delivery zones.
A member of staff in store will be able to advise on the availability, price and timescale of delivery for items purchased in store.
14 days to change your mind
Within the first 14 days of your item being delivered you may decide to return it to us for any reason. If you do we will refund the cost of the item and your initial delivery charge.
Some items are excluded from this policy, and any item returned must be in a resalable condition.
Faulty items
If you discover your product to be faulty within the first 30 days of purchase, please contact us and we will be able to arrange the return of your parcel, for a full refund of your purchase cost, including initial postage price. If you send the product back to us, we will also cover the cost of your return postage to the value of £10.