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Plants have stopped growing - your advice please?

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Plants have stopped growing - your advice please?
Old 03-28-2013, 10:15 PM   #31
 
UPDATE:

Yesterday I substituted a 16w CFL for one of the 2 10w.

The Cyanobacteria hasn't grown back very fast since I vacced most of it up.

I still don't see much growth, but I added 10 drops of Flourish Comprehensive yesterday. At 60 drops per teaspoon, that's 1/6 teaspoon. A teaspoon is 5 ml. I'm wondering if I'm underdosing the comprehensive. A 1/4 teaspoon would be 15 drops at 60 drops per teaspoon. My computer has been down hard so I can't get to my spreadsheet and look over my calculations.

I'm holding off on dosing any more K2SO4. I am feeding the fish very small quantity but twice a day.

That's it for now.

Steven
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Old 04-04-2013, 10:34 PM   #32
 
Update

An update on my 10g low tech. KH is still 3 and GH is 5. Should I use Baking Soda again and how much?

Yesterday I switched my 10w CFL with a 13w, so now 2 13w online. It seems pretty bright to me.

The Cyanobacteria is not advancing, and I removed a lot of it yesterday.

I've been thinking lately that maybe I should start dosing macro ferts (NPK). Could anyone advise me how much of each I should dose, how often I should dose it? I am already dosing K2SO3 at 1/4 teaspoon 1x per week. I really feel like the plants are slowly starving.

Thanks,

Steven
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Old 04-05-2013, 12:30 PM   #33
 
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Quote:
An update on my 10g low tech. KH is still 3 and GH is 5. Should I use Baking Soda again and how much?
Why would you want to use baking soda? I thought this was previously covered in this thread, there is no need to mess with KH. And besides, with fish baking soda in=s not advisable.

Quote:
Yesterday I switched my 10w CFL with a 13w, so now 2 13w online. It seems pretty bright to me.
Two 10w CFL Daylight bulbs is plenty over a 10g; I have this, and on my 20g too.

Quote:
I've been thinking lately that maybe I should start dosing macro ferts (NPK). Could anyone advise me how much of each I should dose, how often I should dose it? I am already dosing K2SO3 at 1/4 teaspoon 1x per week. I really feel like the plants are slowly starving.
I do not advise this. If you are using a comprehensive liquid like Flourish you are adding all that is necessary to balance the light, without CO2 diffusion. Plus the Equilibrium [I think this was mentioned earlier, sorry, can't remember].

What makes you think the plants are starving?
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Old 04-05-2013, 02:36 PM   #34
 
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unless you are dosing all other nutrients in a balance your going to see some toxicity in your plants and/or a algae explosion. I can say this from experience with my current tank. if you look at my journal you can see the result of improper fertilization and too much light I also dosed individual ferts with flourish compand if your only dosing what you mentiuoned with nothing else you will defiantely see some big problems. stick with the lower light bulbs and flourish maybe once a week. if your wanting to see growth that is measured in days or week get co2 injection. otherwise re evaluated what you want out of the tank. don't mean to come down hard here but just telling it like it is since I have went down the road your starting and it aint pretty and is a real headache climbing out of.

there is a new article I just wrote up on how to keep and setup a low light/low tech tank which is what your current system is. I recommend you taking a read ;)
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Old 04-05-2013, 04:36 PM   #35
 
Quote:
Originally Posted by Byron View Post
Why would you want to use baking soda? I thought this was previously covered in this thread, there is no need to mess with KH. And besides, with fish baking soda in=s not advisable.



Two 10w CFL Daylight bulbs is plenty over a 10g; I have this, and on my 20g too.



I do not advise this. If you are using a comprehensive liquid like Flourish you are adding all that is necessary to balance the light, without CO2 diffusion. Plus the Equilibrium [I think this was mentioned earlier, sorry, can't remember].

What makes you think the plants are starving?
Hi Byron,

I read somewhere that KH should be close to GH, and that Baking Soda could raise KH. Not?

I also read that people are having success with 2 13w CFLs. Not again, I guess. I can switch back to 2 10w bulbs. But I think this tank has normally been on the bright side, but I've been plagued by hair algae and now BGA. Makes sense to me to go to 2 10w CFLs.

Some new leaves are white noticeable on the Sword, and stunted. I noticed today. I forget which deficiency that's related to.

My computer is still down and I'm using a friend's laptop which is a royal pain but I'm glad I have it. I can get my e-mail and log in here.

Thanks for the advice, Sir! :)

Steven
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Old 04-05-2013, 04:39 PM   #36
 
Will read. Thanks for the advice.

Steven
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Old 04-06-2013, 11:38 AM   #37
 
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Quote:
I read somewhere that KH should be close to GH, and that Baking Soda could raise KH. Not?
No. GH impacts fish directly, and plants when it is too low [we've dealt with that before]. The KH has no impact on fish; as far as plants, some hard-water plants will use bicarbonates for nutrients but this is not relevant with soft water plants, some of which can't anyway. The main issue with KH is that it buffers pH, so some will advise a higher KH to prevent pH fluctuations, but with soft water fish this is not necessary and in any event you are not likely to see fluctuations significant to cause fish distress.

Baking soda, which is sodium bicarbonate, will obviosly raise KH, but this is not advisable with fish. First, the buffering effect of baking soda is not permanent, and as organics increase the baking soda works less and less effectively. Second, it contains sodium which is not good for any freshwater fish.

Quote:
I also read that people are having success with 2 13w CFLs. Not again, I guess. I can switch back to 2 10w bulbs. But I think this tank has normally been on the bright side, but I've been plagued by hair algae and now BGA. Makes sense to me to go to 2 10w CFLs.
Given the algae issues, I would stay with the two 10w.

Quote:
Some new leaves are white noticeable on the Sword, and stunted. I noticed today. I forget which deficiency that's related to.
My computer is still down and I'm using a friend's laptop which is a royal pain but I'm glad I have it. I can get my e-mail and log in here.
I would like to see photos when you can. With the light, twice weekly (or even once) of Flourish Comp, and the Equilibrium to raise GH to 4 or 5 dGH, there should be no issues.

Byron.
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Old 04-06-2013, 11:51 AM   #38
 
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some root tabs with swords seem to be a great choice aswell
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Old 04-06-2013, 04:16 PM   #39
 
Thank you, gentlemen, for your kind advice.

I'll take the pics tonight.

Mitch, I've got one or two under the Sword plant. They worked fine when I first put them in, the second maybe 4 months ago.
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Old 04-06-2013, 06:05 PM   #40
 
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Quote:
Originally Posted by Nemo the Clownfish View Post
Thank you, gentlemen, for your kind advice.

I'll take the pics tonight.

Mitch, I've got one or two under the Sword plant. They worked fine when I first put them in, the second maybe 4 months ago.
If you use substrate tabs for the swords, you need to replace them every 3 months. I use these for my larger swords, and the tiger lotus. But for the smaller swords and everything else, liquid sufficies.

I personally wouldn't use them in a 10g, as you will not have large sword plant species. My chain sword and pygmy chain sword grow like weeds in the 20g and 10g with the light you have and once weekly Flourish Comp.
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