Pro Shrimp

Seachem Flourish Excel

Seachem Flourish Excel - Main image
$3.18 $4.74 In stock

Category: Aquarium Fertiliser

Flourish Excel is a source of bioavailable organic carbon. All plants require a source of carbon. This is typically obtained from CO2, but, may also be derived from simple organic compounds (such as photosynthetic intermediates). The use of either CO2 injection or Flourish Excel does not necessarily negate the use of the other. Because the processes of producing photosynthetic intermediates and building onto them occur simultaneously, one can derive a substantial benefit with the use of Flourish Excel either alone or in conjunction with CO2 . The combination is particularly ideal for situations when continuing to add CO2 could result in dangerously low pH levels. Flourish Excel also has iron reducing properties which promote the ferrous state of iron (Fe+2), which is more easily utilized by plants than ferric iron (Fe+3).

The reason plants need CO2 is to produce longer chain carbon compounds also known as photosynthetic intermediates. Photosynthetic intermediates include compounds such as ribulose 1,5-bisphosphate, and 2-carboxy-3-keto-D-arabinitol 1,5 bisphosphate. Although the names are complicated, the structures are quite simple (5 carbon chains). Flourish Excel does not contain these specific compounds per se, but one that is quite similar. By dosing with Flourish Excel you bypass the involvement of CO2 and introduce the already finished, structurally similar compounds. It is in its structural similarity that Flourish Excel™ is able to be utilized in the carbon chain building process of photosynthesis. Simple chemical or enzymatic steps can easily convert it to any one of the above named compounds (or a variety of others).

Directions

On initial use or after a major (> 40%) water change, use 1 capful (5 mL) for every 40 L (10 US gallons). Thereafter, use 1 capful for every 200 L (50 US gallons) daily or every other day. For smaller dosing, please note that each cap thread is approximately 1 mL.

DO NOT OVERDOSE

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Customer Reviews (4.8 / 5 · 4 reviews)

Harper B. ★★★★★

Was a bit skeptical at first, but after a couple of weeks, my java fern and anubias have noticeably fewer yellow leaves. The liquid carbon source seems to work well for my low-tech setup.

Evelyn Y. ★★★★★

I added this to my low-tech tank and saw my Java moss and anubias looking noticeably greener within just a week, the liquid carbon delivery is super convenient.

Lucy R. ★★★★★

My cryptocoryne was melting for weeks until I switched to this for liquid carbon dosing, and within five days new growth appeared. The bioavailable carbon source is easy to measure with the cap, and one bottle lasts me a couple months on a 20-gallon tank.