Fish Water Care Plant Fertilizers

11 products

  • Synergee Root Tabs

    Summit Pets® Synergee Root Tabs

    4 reviews

    Synergee Root Tabs are growth-stimulating capsules for planted aquariums. This all purpose plant food contains organic ingredients and vital micronutrients to grow stronger, more vibrant plants starting at the root. Great for all rooting plants and heavy root-feeders such as Cryptocoryne, Carpeting Plants, Sword Plants, Bulb Plants, and other plants that produce runners for propagation.Best when used with Synergee Liquid Fertilizer! Directions:Insert one (1) Root Tab every four (4) to six (6) inches in a grid-like pattern. Replace every month, or as needed, depending on plant usage. For best results, push to the bottom of your substrate. Compatibility:Safe for the use in all freshwater planted aquariums. Synergee Root Tabs are fish, shrimp and snail safe!

    $14.99 - $27.99

  • Last stock! Seachem Flourish Seachem Flourish

    Seachem Laboratories Seachem Flourish

    2 reviews

    2 in stock

    Seachem Flourish is loaded with an incredibly wide array of essential microelements, trace elements and other nutrients that directly contribute to the successful growth and development of freshwater plants. This scientifically formulated plant supplement serves as a growth stimulator for aquarium plant stems and leaves, preserving their health and keeping your aquatic environment looking beautiful and lush. Along with vitamins and amino acids, Seachem Flourish is also rich in gluconate iron, manganese, calcium, magnesium, potassium, inositol, chlorine b12, biotin and other factors that have been determined to be exceptionally beneficial to aquatic plants. Seachem Flourish does not contain phosphate, nitrate or other fertilizers that promote unsightly algae growth and is safe for all invertebrates. Enjoy a stunning tank brimming with natural plant life!

    2 in stock

    $9.99 - $24.99

  • Seachem Flourish Excel Seachem Flourish Excel

    Seachem Laboratories Seachem Flourish Excel

    1 review

    12 in stock

    All plants require a source of carbon and Flourish Excel is a simple source of readily available organic carbon that directly benefits the growth and overall development of a wide variety of aquatic plants. Typically carbon comes from CO2, but it can also be derived from simple organic compounds such as photosynthetic intermediates, which are found in this formula. Now, this isn't to say that using one would negate the other efficacy, on the contrary! Due to the fact that processes surrounding the production and development of photosynthetic intermediates occur simultaneously, aquarists are able to achieve substantial benefits when using both Seachem Flourish Excel in addition to in-tank CO2 injections. The combination of these two carbon-based additives is well suited for situations when continuing to add CO2 could result in dangerously low pH levels within the aquarium. Additionally, the solution has efficient iron reducing properties which promote the ferrous state of iron (Fe+2), which is more easily utilized by aquatic plants than ferric iron (Fe+3). CO2 is needed to produce longer chain carbon compounds known as photosynthetic intermediates that contain compounds such as ribulose 1,5-bisphosphate, and 2-carboxy-3-keto-D-arabinitol 1,5 bisphosphate. In layman's terms, Seachem Flourish Excel does not contain these exact compounds, but ones that are quite similar, allowing you to bypass the involvement of CO2 by introducing already finished, structurally similar compounds to the benefit of your delicate aquatic plants.

    12 in stock

    $9.99 - $22.99

  • Summit Synergee Liquid Fertilizer - 500 mL

    Summit Pets® Summit Synergee Liquid Fertilizer - 500 mL

    Out of stock

    Summit Synergee Liquid Fertilizer is a comprehensive supplement for freshwater planted aquariums. Containing concentrated elements that are essential for healthy flora, using 1-2 times per week will ensure your plants will have the needed nutrients for exceptional growth and colour. Best when used with Summit Synergee Root Tabs! Directions:SHAKE WELL BEFORE USEDose 5 mL per 60 Gallons 1-3x per week, or more as needed. High-Tech aquariums with CO2 should be dosed more frequently with higher growth. Water changes should be 25-50% each week, with or without fertilizer. Refrigeration is recommended 3 months after opening. Compatibility:Safe for the use in all freshwater planted aquariums. Summit Synergee products are fish, shrimp and snail safe and will not affect beneficial bacteria.

    Out of stock

    $24.99

  • Last stock! Seachem Flourish Potassium

    Seachem Laboratories Seachem Flourish Potassium

    1 review

    2 in stock

    Seachem Flourish Potassium is a top-of-the-line potassium (50,000 mg/L) supplement designed specifically for use in delicate planted aquariums. Potassium is one of many vital macronutrients, alongside nitrogen, phosphorus and others, that are required by aquatic plants, with their absence becoming a limiting factor to healthy growth and development. In aquariums with low mineral content, potassium can be quickly depleted and cause unsightly yellowing in older leaves. Within the aquarium setting, the most easily obtained sources of potassium are potassium nitrate and potassium phosphate, both of which increase the levels of nitrogen, phosphorus and potassium and eliminate the ability to target a specific NPK (nitrogen, phosphorus, potassium) ratio. Seachem Flourish Potassium is unique in the sense that this solution is derived from potassium sulphate, which allows aquarium owners to precisely adjust potassium levels without impacting the established nitrogen and phosphorus levels in the tank.

    2 in stock

    $14.99

  • Last stock! Seachem Flourish Iron

    Seachem Laboratories Seachem Flourish Iron

    1 in stock

    Seachem Flourish Iron is a highly concentrated (10,000 mg/L) source of ferrous iron gluconate supplement designed for use in planted aquariums. Plants use iron as a way to produce essential chlorophyll, but a lack of iron will result in chlorosis or the yellowing of the younger leaves with short and slender stems. If the deficiency maintains severity and duration, each new leaf that emerges will be lighter in colour than the preceding leaf. Plants are able to better utilize this formula due to the fact that ferrous iron gluconate is already in the ferrous form so plants do not expend additional energy trying to reduce it. Ferric iron is only soluble below a pH of around 5.5, but this will be significantly higher in planted aquariums, rendering this type of iron useless. The ferrous iron found in Seachem Flourish Iron is the preferred iron form as it is an excellent source of carbon and is soluble in water of any pH level, making it more versatile and functional for a variety of different water parameters for planted aquariums. Additionally, the ferrous gluconate found in this formula is better suited to foliar feeding than iron-EDTA, allowing your plants to grow and develop at a quicker rate.

    1 in stock

    $14.99

  • Seachem Flourish Tabs Seachem Flourish Tabs

    Seachem Laboratories Seachem Flourish Tabs

    Out of stock

    Every aquarium owner needs this secret weapon in their arsenal! Seachem Flourish Tabs are powerful and effective growth stimulating tablets that have been designed to target delicate plant roots. These small, compact tablets contain essential trace elements such as amino acids, and vitamins and are rich in iron, manganese, magnesium, calcium, potassium, inositol, chlorine b12, biotin, and other compounds that have been proven to be exceptionally beneficial to the development of aquatic plant roots. Seachem Flourish Tabs contain no phosphate or nitrate that often contribute to the proliferation of algae. Each pack of 10 tablets treats a 12" x 30" inch plant bed two times.

    Out of stock

    $15.99 - $48.99

  • Seachem Flourish Trace

    Seachem Laboratories Seachem Flourish Trace

    Out of stock

    Seachem Flourish Trace is a top of the line liquid supplement designed specifically for use in delicate planted aquariums. The formula contains a wide range of essential trace elements such as boron, cobalt, copper, manganese, molybdenum, zinc and nickle, all of which have been deemed vital for aquatic plants to properly grow and develop. Often, these trace elements are depleted through the processes of utilization, oxidation and precipitation with the latter two processes occurring more rapidly than with other micronutrients making it essential to replace trace elements on a regular basis. The solution is completely safe for fish and delicate invertebrates such as shrimp. Boron: Death of the stem and root apical meristem, leaves are twisted, young tissue is most affected Cobalt: Used for nitrogen fixation, same symptoms as nitrogen deficiency signs (stunted growth) Copper: Young leaves are dark green, twisted, wilted, but the tip remains alive Manganese: Chlorosis of young leaves, with the smallest veins remaining green, necrosis between the veins Molybdenum: Marked by chlorosis, twisting and the death of young leaves Zinc: Reduced leaf size, shortened internodes, chlorosis, spotted leaves, older leaves are most affected Nickel: Lack of germination or seed formation, required for iron absorption

    Out of stock

    $16.99

  • Last stock! Seachem Flourish Nitrogen

    Seachem Laboratories Seachem Flourish Nitrogen

    2 in stock

    Seachem Flourish Nitrogen is a top of the line nitrogen blend supplement designed specifically for use in delicate planted aquariums. Nitrogen is one of the main three main macro nutrients, alongside phosphorus and potassium, that are required by aquatic plants, with their absence becoming a limiting factor to healthy growth and development. This concentrated (15,000 mg/L) blend of nitrogen sources provides essential nitrogen in both the nitrate form as well as the plant-preferred ammonium form. To make things even safer, absolutely no harmful free ammonia is released because the ammonium in Seachem Flourish Nitrogen is complexed and wholly unavailable for consumption until utilized by the plants themselves. The solution is completely safe for fish and sensitive invertebrates such as shrimp.

    2 in stock

    $14.99

  • Last stock! Seachem Flourish Advance

    Seachem Laboratories Seachem Flourish Advance

    3 in stock

    The 250 ml container of Seachem Flourish Advance is a natural phytohormone supplement for sensitive planted aquariums, packed with beneficial minerals and nutrients that are necessary to regulate and enhance explosive and eye-popping plant growth. This growth enhancer boosts mineral absorption allowing your plants to battle harsher diseases and dramatically stimulate the growth of roots and shoots. Phytohormones are naturally occurring compounds that are essential in regulating developmental processes such as cell division, formation and the activity of shoot meristems, induction of photosynthesis gene expression, leaf senescence, nutrient mobilization, seed germination, root growth and stress response. All of these processes contribute to healthy, long lasting aquatic plants. For the best results, Seachem Flourish Advance should be used on a regular basis to ensure that plants are properly absorbing the wide variety essential nutrients inside of the aquarium. After approximately 10-14 days of steady use, root growth will begin beneath the surface of the substrate, followed by significantly enhanced development on both leaves and stems. It is completely safe for fish and invertebrates.

    3 in stock

    $17.99

  • Last stock! Seachem Flourish Phosphorus

    Seachem Laboratories Seachem Flourish Phosphorus

    2 in stock

    Seachem Flourish Phosphorus is a top of the line potassium phosphate supplement designed specifically for use in delicate planted aquariums. Phosphorus is one of the main three main macro nutrients, alongside nitrogen and potassium, that are required by aquatic plants, with their absence becoming a limiting factor to healthy growth and development. This safe (4,500 mg/L phosphate) solution provides essential phosphorus as well as taking the guess work out of maintaining accurate phosphorus dosing in your freshwater aquarium. To make things even safer, Seachem Flourish Phosphorus is nitrate free and allows aquarists to dose phosphorus according to the specific needs of the plants within your aquarium, all without worrying about the risk of overdosing nitrates. When used as directed, the solution will accelerate the growth of plants without contributing to a boom in algae production. Completely safe for all fish and sensitive invertebrates such as shrimp.

    2 in stock

    $14.99

© 2026 Summit Pets, Powered by Shopify

  • CA (CAD $) CA (CAD $)
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa