Seachem Flourish Complete Planted Tank Fertilizer Expand

Seachem Flourish


Seachem Flourish is a comprehensive supplement for the planted aquarium providing minor and major minerals for an improved growth of plants and marine macroalgae.
As it does not contain significant levels of Nitrate & Phosphate Seachem Flourish it a great ready mixed fertiliser solution to support aquarium plants and marine algae growth for an improved nutrients export in planted tanks.

More details

£ 8.95

Total Rating:  Total Rating Total Rating Total Rating Total Rating Total Rating

0/5 - 0 reviews

View ratings
0 1 2 3 40
0 1 2 3 00
0 1 2 0 10
0 1 0 1 20
0 0 1 2 30

 Add Review View Reviews View Reviews

Fast & Safe Delivery

Individual Customer Service

100% Satisfaction Guarantee

Premium Quality

Macroalgae Price Match

By buying this product you can collect up to 15 loyalty points. Your cart will total 15 points that can be converted into a voucher of £ 0.30.

Seachem Flourish®  Aquarium Plant Food for the Planted Reef Tank & Macroalgae Refugium 100ml / 250ml / 500ml

Seachem Flourish Comprehensive supplement for the planted aquarium is a great choice when it comes to successful growing plants & macroalgae in a planted aquarium.
It won't add significant levels of Nitrate & Phosphate and is therefore a great solution for lowering Nitrate & Phosphate levels in the aquarium water.

Instruction Guidelines

  • Shake Seachem Flourish well before using.
  • Dosing recommendation:
    Use 1 capful (5 mL) for each 250 L once or twice a week. For smaller doses each cap thread is approximately 1 mL. Refrigeration after opening is recommended but not required.
  • For strong algae growth it is recommended to maintain a minimum Nitrate level of 3-5 ppm and phosphate level of 0.01 ppm, as otherwise an optimum macroalgae growth may not be possible.
  • Concentrated formula & integrated measuring bottle - 500 ml will treat 5000 litres of tank water
  • Contains  0.0001% Copper *1


Keep out of reach of children. Not for human consumption. Handle with care in the aquarium.

*1 =  Please note that Copper can be toxic to aquatic animals and invertebrates like shrimp and snails as they are particularly sensitive. However, copper is needed in trace amounts by both plants and animals which is why Seachem includes it in Flourish and other of their trace products. The amount of copper in Flourish® is so small that a massive overdose would be necessary before it would begin to reach an amount of Copper that is toxic to even the most sensitive animals. This said when using this fertiliser we recommend for safety reasons to monitor the Copper level in the aquarium water and to use if necessary Copper removing supplements.     

Nitrogen (N)0.07%, Phosphate (P2O5) 0.01%, Soluble Potash (K2O)0.37%, Calcium (Ca)0.14%, Magnesium (Mg)0.11%, Sulfur (S)0.2773%, Boron (B)0.009%, Chlorine, (Cl)1.15%, Cobalt (Co)0.0004%, Copper (Cu)0.0001%, Iron (Fe)0.32%, Manganese (Mn)0.0118%, Molybdenum (Mo)0.0009%, Sodium (Na)0.13%, Zinc (Zn)0.0007%

Potassium Chloride, Calcium Chloride, Copper Sulfate, Magnesium Chloride, Ferrous Gluconate, Cobalt Sulfate, Magnesium Sulfate, Manganese Sulfate, Boric Acid, Sodium Molybdate, Zinc Sulfate, Protein Hydrolysates

Path: > > > Seachem Flourish

100% Satisfaction Guarantee

We want you to be fully happy with your new algae addition. Therefore we offer you a hassle free Satisfaction Guarantee.  

If you are not 100%  happy with the macroalgae you received on arrival we will refund you the full money back *1.
We even will cover the return costs. The refund will be offered after we arrived and checked the returned algae.

*1 = Valid for UK Orders only, please see our Terms for EU orders HERE 

Top Quality Macro Algae Guarantee

We offer you marine algae from our mature macro algae mother colonies in a premium quality & 100% healthy. Sustainably grown in the UK.

All macro algae we sell will be normally heat sealed and wet wrapped when posted to you, protected in a small box which assures that it doesn't get damaged while in transit. 

Best Price Guarantee

We won't be beaten on the Premium Quality of our Macroalgae cultures, and surely not on the price either!

Have you seen the same macro algae somewhere else cheaper?

Please just send us a message HERE and we will check your request within 24 hours ( working days only ).

When we can match the other price we will send you a discounted offer which will be valid for the next 7 days after receiving our email. 
This offer will be just valid for purchases using the email address provided before.

The price match offer is only valid for identical, same size/amount and available macroalgae species.
As a proud UK based tax paying business, we don't price match any offers against auction sites or from private sellers.

The price match offer is just valid for UK deliveries. We reserve the right to refuse a price match request.

If you have any questions please don't hesitate to contact us, please.

Your Livealgae UK

Livealgae UK

Send us your question

Be the first to ask a question about this product!

Question about the product

* Required fields

The question has been correctly sent

Total rating:
0 1 2 3 4
Based on 0 reviews
0 1 2 3 4 (0)
0 1 2 3 0 (0)
0 1 2 0 1 (0)
0 1 0 1 2 (0)
0 0 1 2 3 (0)