dosing fertz - How much? (new menmber) - The Planted Tank Forum
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post #1 of 24 (permalink) Old 07-12-2012, 02:58 AM Thread Starter
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dosing fertz - How much? (new menmber)

Hi everyone i have a 100 gallon planted aquarium. this tank has been setup since May, and cycled/seeded with a 2yr mature rena xp3 along with an ac110. both have mature prefilter sponge. fish have been in since day 1, plants 2 weeks later.
Substrate is 3", 1" of flourite, 1" of fine gravel, 1" of course gravel
flourish trace - 1 tsp (5ml) 3x weekly
flourish excel - 1 tbsp (15ml) 3x weekly
flourish tabs - where the sword plants are
i have no co2
my lighting fixture is an odyssey 4-bulb CF t5ho, 260watt total, 65watt per bulb
the bulbs consist of (2) actinic blue bulbs (2) 12,000K white lights
my fish include:
1x bala shark 6"
1x featherfin catfish 8"
3x jack dempsey's 4", 5", 7"
1x parrot fish 7"
1x indo datnoid 7"
2x bristolnose pleco 3", 3"
1x giraffe catfish 8"
My plants include:
aponogeton capuronii
aponogeton ulvaceus
echinodorus amazonicus
echinodorus bleheri
echinodorus bathii
hygrophila corymbosa
anubias
cryptocoryne
bacopa monnieri
ceratopteris thalictroides
vallisneria americana
duckweed
rotala indica
riccia fluitans
Hydrocotyle Leucocephala
nymphaea lotus
Ceratophyllum Submersum
hygrophila polysperma


is this the correct amount of fertz for my setup? should i dose more or less?
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post #2 of 24 (permalink) Old 07-12-2012, 03:27 AM
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The excel dosing looks alright, but per seachems website you should be dosing 5ml per 20 gallons for the traces, which would be 25ml. Also I dont see anywhere that you say you are dosing NPK which is just as important as dosing the traces. On a tank as large as yours you should looking into dosing dry ferts, it will be a ton cheaper in the long run.
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post #3 of 24 (permalink) Old 07-12-2012, 05:16 AM Thread Starter
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i already have a heavy bioload why would i need nitrogen? i can understand potassium and phosphate but do i really need to be dosing nitrogen with my bioload?
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post #4 of 24 (permalink) Old 07-12-2012, 05:18 AM
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NPK, Nitrogen, Phosphate, and Potassium.

Standard 10 Gallon (20 x12x12).
Low tech, Sand substrate.
Eheim 2211, and Aqueon Quietflow 10.
Finnex Stingray LED, 20" above substrate
2 Anubias Nana Petite, Christmas moss.
4 Halequin Rasborahs, 5 RCS.
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post #5 of 24 (permalink) Old 07-12-2012, 05:19 AM
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Do you know what your nitrate and phosphate levels are?

Standard 10 Gallon (20 x12x12).
Low tech, Sand substrate.
Eheim 2211, and Aqueon Quietflow 10.
Finnex Stingray LED, 20" above substrate
2 Anubias Nana Petite, Christmas moss.
4 Halequin Rasborahs, 5 RCS.
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post #6 of 24 (permalink) Old 07-12-2012, 05:29 AM
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Also, what are the dimensions of your tank? That will help determine the light levels, and thereby the nutrient uptake.

Standard 10 Gallon (20 x12x12).
Low tech, Sand substrate.
Eheim 2211, and Aqueon Quietflow 10.
Finnex Stingray LED, 20" above substrate
2 Anubias Nana Petite, Christmas moss.
4 Halequin Rasborahs, 5 RCS.
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post #7 of 24 (permalink) Old 07-12-2012, 05:37 AM Thread Starter
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48 1/2"Long X 19" wide X 24" high
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post #8 of 24 (permalink) Old 07-12-2012, 05:49 AM
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With the 24" high tank, your 4 x 65 watt CF light is putting you in low light, probably very low with the 2 actinic bulbs. If you are having problems with plant growth, you might consider replacing the Actinic bulbs with 6500k - 10000k bulbs. If you are testing your nitrates and phosphates, you can determine whether or not you need to dose them. I would replace the Flourish Trace, with regular Flourish Comprehensive. The Trace has practically nothing in it, and no iron. The Comprehensive will give you all the micro's you need.

Standard 10 Gallon (20 x12x12).
Low tech, Sand substrate.
Eheim 2211, and Aqueon Quietflow 10.
Finnex Stingray LED, 20" above substrate
2 Anubias Nana Petite, Christmas moss.
4 Halequin Rasborahs, 5 RCS.
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post #9 of 24 (permalink) Old 07-12-2012, 05:49 AM
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Quote:
Originally Posted by mr.bigglesworth View Post
i already have a heavy bioload why would i need nitrogen? i can understand potassium and phosphate but do i really need to be dosing nitrogen with my bioload?
Test your nitrates and find out. If they're already high, then don't dose any extra. If they're midrange, then you might want to dose some, but not the full amount. If they're low, then dose the full amount.

As you plants grow, test it every now and then to see if you need to adjust your dosing.

That's not to say you have to do this. You can just dose the nitrates and not worry about it. But if you'd prefer not to, then test the water (literally) and see what need exists. Dose accordingly.

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post #10 of 24 (permalink) Old 07-12-2012, 06:07 PM
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Quote:
Originally Posted by mr.bigglesworth View Post
i already have a heavy bioload why would i need nitrogen? i can understand potassium and phosphate but do i really need to be dosing nitrogen with my bioload?
Ya it's possible that you have enough n but with testing you can't be sure, definitely need k and p.
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post #11 of 24 (permalink) Old 07-12-2012, 10:42 PM Thread Starter
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Quote:
Originally Posted by livingword26 View Post
With the 24" high tank, your 4 x 65 watt CF light is putting you in low light, probably very low with the 2 actinic bulbs. If you are having problems with plant growth, you might consider replacing the Actinic bulbs with 6500k - 10000k bulbs. If you are testing your nitrates and phosphates, you can determine whether or not you need to dose them. I would replace the Flourish Trace, with regular Flourish Comprehensive. The Trace has practically nothing in it, and no iron. The Comprehensive will give you all the micro's you need.
Then why are all my low light plants like anubias covered in black beard algae? But yet my high light plants are thriving? and why did i have a huge algae bloom for weeks? im not entirely sure what type of lighting it is. i bought it used, it came with a tank the fixture is gigantic, built in fans, gets decently hot,etc it is an odyssea fixture and its four-bulb, 260watt and 65wpb thats pretty much all i know. the label says actinic blue and 12,000k but who knows it might not be the same stock bulb, the fixture seems pretty old maybe a year. and my high light plants are flourishing, my problem is getting the low-light plants to grow. and i also really want them to grow faster, some are but most are still melting from introduction, most of the plants are fairly recent -2weeks in tank. the old plants are doing fantastic! my vals, pennywort, hornwort, hygrophila, rotala, crypts, lotus, aponogeton are doing great! the pennywort, hornwort, and crypts all have lots of new growth but its just disgusting to look at, algae mess. the echinodorus is split in half, some are thriving, some are a rotting corpse of melting plaster. the lotus has so much growth its amazing. its got 15-20 new leaves from just a bulb in 1 month! the aponogeton went from a bulb to 4-leaves, each 12" high in 1 month too! i am already about to buy the pottassium and phosphate as well as regular flourish-(if thats what comprehensive is?) and im still trying to find plant weights to prevent uprooting. i had no idea trace had no iron? my problem isnt getting them to grow, its getting them to grow FASTER!! i want the type of growth where you wake up in the morning to 20 shoots. i usually find a shoot or two every other day. all advice is appreciated
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post #12 of 24 (permalink) Old 07-12-2012, 10:52 PM
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are all the bulbs all white? Or are half of them blue?

Standard 10 Gallon (20 x12x12).
Low tech, Sand substrate.
Eheim 2211, and Aqueon Quietflow 10.
Finnex Stingray LED, 20" above substrate
2 Anubias Nana Petite, Christmas moss.
4 Halequin Rasborahs, 5 RCS.
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post #13 of 24 (permalink) Old 07-12-2012, 10:56 PM
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BBA is caused by to much light, in comparison to your co2 and fertilizer levels, Or by fluctuation co2 levels. If you have a heavily planted aquarium, you are probably running out of co2 by late in the lighting period. Here is where I get my information on lights:

https://www.plantedtank.net/forums/sh...d.php?t=105774

Standard 10 Gallon (20 x12x12).
Low tech, Sand substrate.
Eheim 2211, and Aqueon Quietflow 10.
Finnex Stingray LED, 20" above substrate
2 Anubias Nana Petite, Christmas moss.
4 Halequin Rasborahs, 5 RCS.
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post #14 of 24 (permalink) Old 07-12-2012, 11:31 PM Thread Starter
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Quote:
Originally Posted by livingword26 View Post
are all the bulbs all white? Or are half of them blue?
Yes half are blue
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post #15 of 24 (permalink) Old 07-12-2012, 11:46 PM Thread Starter
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Quote:
Originally Posted by livingword26 View Post
BBA is caused by to much light, in comparison to your co2 and fertilizer levels, Or by fluctuation co2 levels. If you have a heavily planted aquarium, you are probably running out of co2 by late in the lighting period. Here is where I get my information on lights:

https://www.plantedtank.net/forums/sh...d.php?t=105774
Idk if it is heavily planted, here's a pic u tell me?
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