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post #1 of 13 (permalink) Old 05-09-2012, 11:02 PM Thread Starter
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Substrate question

Hello all,I'm relatively new to this forum and planted tanks as well. My concern is this: my plants have started to look awful,first it was a blackish spot algae which I was able to rub off.Now all plants except Anubias have leaves turning yellow and brown.I add Iron Supplement and Comprehensive Supplement for Planted Aquariums twice a week. Lighting 100w CF.Eco Complete is the substrate about 1 inch. I think i need more substrate for roots to grow.Was wondering what you all thought why plants are struggleling.
Thanks for any advice,
Riffs
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post #2 of 13 (permalink) Old 05-09-2012, 11:41 PM
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What size of tank?

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 #3 of 13 (permalink) Old 05-09-2012, 11:51 PM
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Is your light a 26watt cf that replaces a 100 watt standard light bulb? And what kind of fixture is it in?

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 #4 of 13 (permalink) Old 05-10-2012, 01:43 AM Thread Starter
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Sorry thought I put all that info in first post. 37 gal. with an Odyssea unit with 4/24w.
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post #5 of 13 (permalink) Old 05-11-2012, 02:20 AM
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Quote:
Originally Posted by Riffs View Post
Sorry thought I put all that info in first post. 37 gal. with an Odyssea unit with 4/24w.
You wrote 100 watt cf in the first post also, I assume you have a 4 x 24 T5HO? Check out the lighting sticky as well as the fertilizer sticky. Here are the links:

https://www.plantedtank.net/forums/fe...-regimes_.html

https://www.plantedtank.net/forums/li...t5-t12-pc.html

I'm not sure where the Odyssea light will put you on the scale. I know the reflectors are not as good as most, so you will not be to high like the chart says, especially with the tall tank. Hopefully Hoppy will give you some advise on that.

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 13 (permalink) Old 05-11-2012, 02:23 AM
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Also, I think 1" of substrate is a little shallow, I like 2" myself, but I don't think that is causing your plant problems.

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 13 (permalink) Old 05-11-2012, 02:34 AM
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Iron and Comprehensive are minerals the plants need in fairly small amounts.
While comprehensive has a little bit of N, P and K it is not enough by itself to dose these nutrients.

Are you adding any nitrogen, phosphorus or potassium?
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post #8 of 13 (permalink) Old 05-11-2012, 05:05 AM Thread Starter
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ok, yes I have T5HO. And those charts make NO sense to me, i may need to take a longer look at them. I am not dosing anything other than Comprehensive and Iron.
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post #9 of 13 (permalink) Old 05-11-2012, 06:10 AM
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My guess is you have alot of light but not enough nutrients. With that much light co2 would probably be needed for the plants to keep up with photosynthesis. Those lights are high output and good reflectors would make it worse for your tank. At what height is your light fixture from the water surface. Without a understanding of a PAR reading, one would be lost. I looked at the chart and I didn't understand it myself at first a few weeks ago. But after seeing this one thread that showed pics/examples of numeric valves of par in a setup I understood very well.
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post #10 of 13 (permalink) Old 05-11-2012, 04:00 PM Thread Starter
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@Flight50 Thanks for the response and yes after looking the charts over again I am starting to understand. What nutrients do I need to start with? I did add API's Root tabs yesterday in hopes of recovery. All those KNO's and P and NO3 is confusing, high school chemistry was a long time ago..lol.I'm sure it will come back to me.
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post #11 of 13 (permalink) Old 05-12-2012, 12:20 AM
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Quote:
Originally Posted by Riffs View Post
@Flight50 Thanks for the response and yes after looking the charts over again I am starting to understand. What nutrients do I need to start with? I did add API's Root tabs yesterday in hopes of recovery. All those KNO's and P and NO3 is confusing, high school chemistry was a long time ago..lol.I'm sure it will come back to me.
Dry fertilizers are cheapest by far, but Seachem makes "Flourish" premixed fertilizers also, but their N,P, and K are not cost effective.

Your macro's are:

KNO3, for Nitrates, but will add Potassium also.
KH2PO4, or Phosphates
Nitrate (N), Phosphate (P), and Potassium (K).

Your Micro's, can be gotten from either Plantex CSM+B, or from Flourish comprehensive.

http://greenleafaquariums.com/aquarium-fertilizer.html
http://www.drsfostersmith.com/produc...m?pcatid=12787

You may need a source of carbon also, either co2, or Seachem Flourish Excel.

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 #12 of 13 (permalink) Old 05-12-2012, 12:26 PM
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I prefer Root Medic ferts. Two bottles for everything you need. I'd go nuts dosing dry ferts. . Justin is on here and often has good deals, check the ShopNSwap.

I agree with the others: correct ferts, CO2, deeper substrate (I prefer 3-4") and possibly shorten the amount of time your lights are on. Depending on exactly what type of algae you have, you may need Seachem Excel to kill it. But don't use Excel if you've got nerites or mysteries, it'll leave them as vegetables (lesson learned on that one...)

-Lisa

Selling it all!
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post #13 of 13 (permalink) Old 05-12-2012, 06:45 PM Thread Starter
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Thanks to everyone for all the great info, its alot to take in. after some research I figured out all the macros. I am going to add another 20 Lbs. of Eco-Complete should bring it up to about 2.5 -3 inches. I already turned off the two actinic lights and shorter hours(8 total) for two white lights. Not sure if I want to deal with dry ferts will check out seachem. Oh, now I know why my mystery snails died(I was dosing with Excel). Also will checkout shopnswap along with root medic.My algae problem is almost non-existent ottos,corys and bn plecos are doing a number on it,they are busy little critters!
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