dosing dry ferts - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 13 (permalink) Old 06-04-2004, 06:13 PM Thread Starter
Algae Grower
 
Join Date: Jun 2004
Location: Brampton, Ontario, Canada
Posts: 23
dosing dry ferts

I am thinking of dosing dry ferts. I have a 120g, 260w pc light - added 80 NO light temporarily. Pressurized co2 maintained at 6.7-6.8pH. kH 5.5-6, gH 6. Phosphates 0.5-1ppm(hard to tell from the kit sometimes), nitrates around 10ppm.

Currently, I am dosing NO3@1/2tsp twice a week to maintain at 10ppm. I will be adding a bit of enema to maintain phosphates at 1-1.5ppm. I have been dosing PMDD at about 8ml/day.

I have been battling algea forever. I think my algea situation has gotten worse after adding additional light and starting to dose NO3.

To dose traces dry, what sort of dosage should I be looking at?

Any comments or suggestions would be greatly appreciated.

falcon
falcon is offline  
Sponsored Links
Advertisement
 
post #2 of 13 (permalink) Old 06-04-2004, 06:32 PM
Are these real?
 
Wasserpest's Avatar
 
Join Date: Jun 2003
Location: Monterey, CA
Posts: 15,405
Hi Falcon, welcome to the Planted Tank


I replied to your other question, but then saw more details in this one. I'd say 260W is enough light to grow most plants just fine.

How old is the tank ("forever" is a very long time!)? What sorts and kind of algae are causing you grief? How densely is the tank planted?
Wasserpest is offline  
post #3 of 13 (permalink) Old 06-05-2004, 04:24 AM Thread Starter
Algae Grower
 
Join Date: Jun 2004
Location: Brampton, Ontario, Canada
Posts: 23
The tank has been up for 6 months now. I'd say the tank is fairly densely planted - will try and post a pic tomorrow. Before, I was getting BBA, the one that is hard to pull off. Now, I have the slimy algea. I wouldn't complain about little bit of algea, but I have tons of it and its thriving. On my two new stems, forgot the name, each leaf is covered threefold in algea and the algea extends past the leaves and flows heavily in the water - pretty disgusting.

Wasserpest, I have to add, I just looked at the picture of your 100g tank. Truly, awesome. That's what I would like to have and instead I am up to my ears in algea.

falcon
falcon is offline  
post #4 of 13 (permalink) Old 06-05-2004, 06:00 AM
Are these real?
 
Wasserpest's Avatar
 
Join Date: Jun 2003
Location: Monterey, CA
Posts: 15,405
I have to disagree here... even though it is "only" 2.x Watt/gal, for a tank this size it is a lot, especially when delivered by high-powered PCs with excellent reflectors. There might be an issue with light distribution, but I would still suggest to keep the CO2 running.

If you JUST started with addition of fertilizers, a little more patience is all that might be necessary. When you have algae problems and then correct NO3/PO4 levels, the algae don't disappear quickly, often they seem to even get worse. Tanks go through these cycles of algae. Needs a little bit of time.
I am not using PMDD, so backing off on that as Wolfen suggests might be the right thing to do.

Thanks for your compliment, I enjoy that tank a lot. Go ahead and post the picture of your tank, sometimes that helps to come up with more ideas.
Wasserpest is offline  
post #5 of 13 (permalink) Old 06-05-2004, 03:35 PM Thread Starter
Algae Grower
 
Join Date: Jun 2004
Location: Brampton, Ontario, Canada
Posts: 23
Thanks for your replies guys. I change 50% of water on a weekly basis. In the 260w pc those are 6700k, 80w additional some sort of growth bulbs I think in the 4-5000k range.

I have been fertilizing for 5 months now but have increased the dosage 2 weeks ago. I have been adding no3 for the past week and a half and po4 since yesterday. Wolfen, my phospate level is about 0.5pmm and I am trying to increase it to 1-1.5pmm to feed the plants alongside no3.

Here are the pics...

overall pic...does not provide clarity, not sure why.
http://img.villagephotos.com/p/2004-...5/IMG_0229.jpg

this algea started forming on one sword
http://img.villagephotos.com/p/2004-...5/IMG_0225.jpg

this is what I have throughout
http://img.villagephotos.com/p/2004-...5/IMG_0223.jpg
http://img.villagephotos.com/p/2004-...5/IMG_0221.jpg

I hope you can help me guys as this is getting very discouraging.

falcon
falcon is offline  
post #6 of 13 (permalink) Old 06-05-2004, 03:41 PM
Planted Tank Obsessed
 
zapus's Avatar
 
Join Date: May 2004
Location: Athens, Georgia
Posts: 328
*klaxon* Rookie alert! PMDD? Primordial Mud Dosing Drops?? Maybe we need a glossary of terms and acronyms...
zapus is offline  
post #7 of 13 (permalink) Old 06-05-2004, 03:46 PM
Planted Tank Obsessed
 
zapus's Avatar
 
Join Date: May 2004
Location: Athens, Georgia
Posts: 328
Quote:
Originally Posted by zapus
*klaxon* Rookie alert! PMDD? Primordial Mud Dosing Drops?? Maybe we need a glossary of terms and acronyms...
Oh, duh... I got it, must still be asleep or something---> Poor Man's
zapus is offline  
post #8 of 13 (permalink) Old 06-05-2004, 03:52 PM Thread Starter
Algae Grower
 
Join Date: Jun 2004
Location: Brampton, Ontario, Canada
Posts: 23
Quote:
Originally Posted by zapus
Oh, duh... I got it, must still be asleep or something---> Poor Man's
Zapus, you're funny...
falcon is offline  
post #9 of 13 (permalink) Old 06-05-2004, 06:30 PM
Are these real?
 
Wasserpest's Avatar
 
Join Date: Jun 2003
Location: Monterey, CA
Posts: 15,405
Very nice tank there falcon! I think you have a good grip on nutrients. I would not use the additional 80 Watts until things have cleared up. I would keep PO4 around 0.5 ppm, and Nitrates just as you do around 10 ppm. Keep the CO2 running, and I bet in a few weeks these hairy things will start to disappear all by themselves.
If you have access to Amano shrimps, they might be helpful in cutting down these algae. A few SAE (Siamese Algae Eaters... for zapus ) might be useful addition too.
FWIW, I started my tank with 160 Watts, then went to 175, now about 200 Watts. It's not so much the wattage alone, but also what kind of lamps and reflectors you use. For example, two shoplights with 4x 40W T12 bulbs provide way less light than say 3x 55W PC's with excellent reflectors.
Wasserpest is offline  
post #10 of 13 (permalink) Old 06-05-2004, 07:27 PM
Planted Tank Obsessed
 
fedge's Avatar
 
Join Date: Mar 2004
Location: Iowa, USA
Posts: 461
Crap... and I thought I had bad algae.....

that is much worse than mine... my platy babies eat a lot of the algae off the plants(which is good)... I only feed them every other day now..(I WANT them to HAVE to eat the algae to live!!!)
Quote:
I would keep PO4 around 0.5 ppm, and Nitrates just as you do around 10 ppm
I thought a 1:10 ratio.. not 1/2:10... or will a lesser amount of phosphate help control algae problems? (maybe I am doing my doses all wrong then...) I try to keep nitrate at 5 ppm and phosphate at about .5 .... any more than that on either side and algae tends to grow more intensely..

i ALSO dose potasium since I think I am in deficit of that... (1 ml every 3 days of Seachem K in a 20L--55watt pc)

Help control the pet population...spay or neuter people won't spay or neuter their dogs or cats!
fedge is offline  
post #11 of 13 (permalink) Old 06-05-2004, 08:01 PM
Are these real?
 
Wasserpest's Avatar
 
Join Date: Jun 2003
Location: Monterey, CA
Posts: 15,405
Apart from the fact that most of our test kits are incapable of determining EXACT values for NO3 and PO4...

That ratio is derived from the Redfield ratio for N:P, which should be around 10-15 to avoid both green and blue/red algae. If you convert it to NO3:PO4 (as measured by test kits) this ratio changes to about 15-30.

A lesser amount of PO4 will not supress algae. Actually, if PO4 bottoms out, there is a good chance that various green algae will take over.

Again, this isn't all exact science. As long as there is NO3 and PO4 available to plants, and the ratio isn't completely out of whack (say 5 ppm PO4...), algae will be suppressed!
Wasserpest is offline  
post #12 of 13 (permalink) Old 06-06-2004, 02:58 AM Thread Starter
Algae Grower
 
Join Date: Jun 2004
Location: Brampton, Ontario, Canada
Posts: 23
Thank you for your help Wasserpest. Yes, it's a nice tank but can't fully enjoy 'cause of algea.

I have added 4 more amano shrimp to the original 5 I had. The original five are pretty big now. I like them, they're very busy eating algea.

So, just to make sure, remove the 80w light and stop dosing PMDD. I can continue with NO3&PO4 to maintain the required levels.

falcon
falcon is offline  
post #13 of 13 (permalink) Old 06-06-2004, 05:09 PM
Are these real?
 
Wasserpest's Avatar
 
Join Date: Jun 2003
Location: Monterey, CA
Posts: 15,405
I think so... You should also look at adding traces. I am using Flourish and Flourish Iron for that, others with more intense tanks prefer CSM+B to save some money. (A bottle of Flourish lasts for a long time the way I am dosing).
Wasserpest is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Advice on adding ferts GraemeK Fertilizers and Water Parameters 4 08-17-2004 09:18 AM
Dosing Dry Ferts pixelcrayon General Planted Tank Discussion 12 05-17-2004 11:02 PM
Dosing Potassium TeeItUp Fertilizers and Water Parameters 1 05-17-2004 05:53 PM
a few dosing questions compulsion General Planted Tank Discussion 4 04-21-2004 10:39 PM
Nutrient Dosing DLeDeaux Fertilizers and Water Parameters 9 11-13-2003 07:46 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome