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Talk me out of using Seachem Flourish line

9979 Views 38 Replies 15 Participants Last post by  BettaBettas
So I am looking at switching from using the entire Seachem Flourish line and using the EI method probably going with NilocG Thrive. It is just such a pain dosing all the different products each day and also the wallet could use a break as I should save going with the all in one. I want to know is there any downside going with the EI? Is there still a case where you may need a specific macro/micro fert? I just like the idea of doing a few squirts and being done compared to having to use my spreadsheet with the schedule everyday plus Seachem is so pricey. I am relatively new to planted tanks so like many I started with Seachem but feel I should switch. Who here switched and did your plants take to the change in a good way or bad way? I plan on continuing to use the Seachem root tabs as that is just needed every few months anyway. Thanks ahead if time.
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I know how you feel, im still in the seachum line though... sadly... $$$
im hoping to switch to EI when my house is built finally
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There is nothing wrong with the Flourish line. They are all good sources of nutrients. Don't forget that it's not just fertilizers you will be switching. The amount you dose now will be increased SIGNIFICANTLY when using the EI method. You think Seachem Flourish line is expensive now? Try to use it dosing EI levels. :surprise:

I made a few calculations to compare prices. The mixtures are comparable to each other.

KNO3 1LB $3.00 makes 6.3 liters of Flourish Nitrogen.
6.250 liters of Flourish nitrogen costs $87

KH2PO4 1LB $5.00 makes 10.5 liters of Flourish Phosphorus.
10.5 liters of Flourish Phosphorus costs $144.94

K2SO4 1LB $3.00 makes 3.25 liters of Flourish Potassium.
3.25 liters of Flourish Potassium costs $83.30

Plantex 1 LB $12.00 makes 9.25 liters of Flourish comprehensive.
3.25 liters of Flourish Comprehensive costs $137.38

Grand total: $23 versus $452.62

5% the cost of Seachem's line

The dry fertilizer prices are from NilOCG and the Flourish prices are from Doctors Foster and Smith.
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There is nothing wrong with the Flourish line. They are all good sources of nutrients. Don't forget that it's not just fertilizers you will be switching. The amount you dose now will be increased SIGNIFICANTLY when using the EI method. You think Seachem Flourish line is expensive now? Try to use it dosing EI levels. :surprise:

I made a few calculations to compare prices. The mixtures are comparable to each other.

KNO3 1LB $3.00 makes 6.3 liters of Flourish Nitrogen.
6.250 liters of Flourish nitrogen costs $87

KH2PO4 1LB $5.00 makes 10.5 liters of Flourish Phosphorus.
10.5 liters of Flourish Phosphorus costs $144.94

K2SO4 1LB $3.00 makes 3.25 liters of Flourish Potassium.
3.25 liters of Flourish Potassium costs $83.30

Plantex 1 LB $12.00 makes 9.25 liters of Flourish comprehensive.
3.25 liters of Flourish Comprehensive costs $137.38

Grand total: $23 versus $452.62

5% the cost of Seachem's line

The dry fertilizer prices are from NilOCG and the Flourish prices are from Doctors Foster and Smith.
beautiful stats
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There is nothing wrong with the Flourish line. They are all good sources of nutrients. Don't forget that it's not just fertilizers you will be switching. The amount you dose now will be increased SIGNIFICANTLY when using the EI method. You think Seachem Flourish line is expensive now? Try to use it dosing EI levels. :surprise:

I made a few calculations to compare prices. The mixtures are comparable to each other.

KNO3 1LB $3.00 makes 6.3 liters of Flourish Nitrogen.
6.250 liters of Flourish nitrogen costs $87

KH2PO4 1LB $5.00 makes 10.5 liters of Flourish Phosphorus.
10.5 liters of Flourish Phosphorus costs $144.94

K2SO4 1LB $3.00 makes 3.25 liters of Flourish Potassium.
3.25 liters of Flourish Potassium costs $83.30

Plantex 1 LB $12.00 makes 9.25 liters of Flourish comprehensive.
3.25 liters of Flourish Comprehensive costs $137.38

Grand total: $23 versus $452.62

5% the cost of Seachem's line

The dry fertilizer prices are from NilOCG and the Flourish prices are from Doctors Foster and Smith.
That is an incredible price difference. I knew it was much less but did not know it was that much less to switch. Crazy. :surprise: Thank you for posting that info. Very helpful indeed. I will for sure be switching when my Flourish ferts run out.
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also switching when, as I said, my house is built and my sixty five is up an running lol
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To start off with I will probably just go with the easier All in one Thrive. Then down the road will probably try the dry fertilizer and mix myself as I know that will be the most cost effective. Baby steps :smile2:
Don't be afraid of the pre-measured EI package,The ferts are premixed,you just add distilled water to the 2 bottles and dose them every other day.The EI amunts are right on the side of the bottles,very simple.
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Don't be afraid of the pre-measured EI package,The ferts are premixed,you just add distilled water to the 2 bottles and dose them every other day.The EI amunts are right on the side of the bottles,very simple.


Makes sense. May give it a shot. Have another 2 weeks or so left with my Flourish. I would like not having to pay for the water going dry route.


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Don't be afraid of the pre-measured EI package,The ferts are premixed,you just add distilled water to the 2 bottles and dose them every other day.The EI amunts are right on the side of the bottles,very simple.
link?
so I just buy that, add five hundred ml of Distilled water? noice
yup! they supply 2 mixing bottles,one for micros,one for macros.Dump in the proper packet and fill with water and shake.
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so I just buy that, add five hundred ml of Distilled water? noice
Yupp, that about sums it up! In addition to the money savings, you're going to love the dosing bottle. Just squeeze and pour, no more using caps and accidentally dumping way too much in your tank.

The only things I can add from experience:

1.) Use hot distilled water for the Micros. It can be difficult to get it to all dissolve in cold water. IF there is some precipitate, it's not the end of the world.
2.) Once all dissolved, store it in the fridge. It will grow mold if left at room temp. You can also add some excel to prevent the mold build up.
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All way to complicated for my liking and all those chemicals OMG, everything you add to the tank ends up in your fish.

I put my pets welfare first, sure I will never have one of those fancy scaped tanks you often see on this forum but I dont care as long as my fish are happy and healthy. I did have a bottle of API CO2 booster and I threw it out The stuff stinks and can't be good for the fish, I will stick to my tried and tested method of fish poo and water changes. My tanks are lush enough without all this fertz CO2 and special lighting nonsense,

I keep fish in planted tanks, I dont keep planted tanks with fish in them.
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We started with flourish and switched to thrive. The difference is amazing! Great growth with thrive! And the pump is so nice. When this bottle is gone we'll probably switch to his dry and mix our own. Thrive is just a tad heavy on the nitrates for us.


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Yupp, that about sums it up! In addition to the money savings, you're going to love the dosing bottle. Just squeeze and pour, no more using caps and accidentally dumping way too much in your tank.

The only things I can add from experience:

1.) Use hot distilled water for the Micros. It can be difficult to get it to all dissolve in cold water. IF there is some precipitate, it's not the end of the world.
2.) Once all dissolved, store it in the fridge. It will grow mold if left at room temp. You can also add some excel to prevent the mold build up.
Awesome thank you for the info and the link. Well I am sold on the stuff and will be getting in a week or so. :smile2:

Bump:
We started with flourish and switched to thrive. The difference is amazing! Great growth with thrive! And the pump is so nice. When this bottle is gone we'll probably switch to his dry and mix our own. Thrive is just a tad heavy on the nitrates for us.


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Sounds like a plan. But I could use the nitrates to be honest. My plants make sure of that
@NickAu im doing a dutch tank that's what that was for lol :) thank you for caring about fish though! I will be having some fish but not many. All under 1" not that that means anything different I do agree in some ways. Now these chemicals are human made I do believe? so they aren't natural? either way they don't do harm I do not think. In any way. I use seachem (every single product of fertz) and they work great, fish and shrimp are happy, hoppy, unaffected.
Im going to be honest with you I'd say with my experience with landscaping companys and being a nursery worker/slave, I am more about the scapes and fish than I am about the fish.
But I consider myself to love them equally as much since without the fish I'd be Bucked. And the fish are beautiful that im getting, and unfortunaly 100$ for 12 :p
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Im just trying to get my head around all these additives, Im a firm believer of " If I cant drink it, Then its not fish safe " I keep my tank water so clean its safe to drink even after a week in the tank.

The active ingredients within Excel are potentially very toxic and care must be taken in its use. Glutaraldehyde will chemically burn skin, can damage your lungs if inhaled, and, if you somehow manage to get it in your eyes, can cause serious damage.
After I read that I decided to stop using API CO2 booster as it contains the same stuff, If it isn't safe for me to inhale the fumes, how is it safe to add to my tanks?
API co2 booster sucks lmao, thrive is where it gets serious :eek:

Nick I do however respect your concern.
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