Dry dosing for a 135gal - The Planted Tank Forum
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 08-27-2007, 09:43 PM Thread Starter
Algae Grower
PTrader: (2/100%)
Join Date: Jun 2007
Location: canada
Posts: 13
Dry dosing for a 135gal

After reading through the stickied dosing regime thread, as well as Rex's and Tom's guides, I have come up with the following dosing regime for my 1.6w/gal, DIY co2, 135gal planted tank.

I was wondering if someone could critique this schedule for me and see if it falls within acceptable parameters:

1 tsp KNO3 x3 weekly
2 tsp K2SO4 x3 weekly
1/10 tsp KH2PO4 x3 weekly

Given those amounts, I would be adding (per dose) approximately:
6ppm of KNO3
30ppm of K
0.7ppm of PO4

I have yet to add the co2, as I am still waiting for the 2 diffusers I ordered to come in. What would be an appropriate co2 level for this size of tank? Also, could someone suggest a suitable amount of Fe to add as well?

Thanks very much!
fxie is offline  
Sponsored Links
post #2 of 5 (permalink) Old 08-28-2007, 02:08 AM
Planted Tank Enthusiast
evercl92's Avatar
PTrader: (14/100%)
Join Date: Aug 2006
Location: Columbus, OH
Posts: 512
How many 2L bottles do you plan on using for this tank?
It would seem to me that you would be better off and cheaper to go with pressurized. I personally think that's a lot of phos for a low-light setup. Fe usage is based on plant growth/need. Have a lot of swords? Use more iron.

For my 120g, I add:

1/2 tsp CSM+B 2x week
1/2 tsp K2SO4 2x week
I test for nitrate, and dose KNO3 to reach 30ppm
I test for phos, and dose KH2PO4 to reach 1 - 2 ppm

I have 390wt of CF lighting, pressurized CO2, and 85% of the surface area covered with plants. This has been working quite well for me for a while now.

evercl92 is offline  
post #3 of 5 (permalink) Old 08-28-2007, 03:46 AM Thread Starter
Algae Grower
PTrader: (2/100%)
Join Date: Jun 2007
Location: canada
Posts: 13
I am planning on using 3 2L bottles for the 135gal, with two glass diffusers (one on each end of the tank).

The current plants we have in the tank are Java Fern, Anubias nana, Cryptocoryne petchii, 2 medium and 1 large (the leaves of the large reach to within 3" of the top of the tank) Echinodorus "Rubin", and 1 VERY large (diameter of leaves approximately 3", with total length reaching to the very top of the 24" deep tank) Echinodorus 'Rose'. I have been noticing some of the leaves of the Echinodorus "Rubin" turning transparent, which I will assume is from lack of iron. I have been dosing liquid ferts in the past, but as I have just recently added a large number of crypts and will soon be adding even more plants, nutrients will definitely be lacking.

Since you mention the amount of phosphorous may be too high for my tank, what level would you recommend?
fxie is offline  
post #4 of 5 (permalink) Old 08-28-2007, 12:17 PM
Planted Tank Guru
tazcrash69's Avatar
PTrader: (22/100%)
Join Date: Sep 2005
Location: Hawthorne, NJ
Posts: 3,207
FWIW, it seems like you are going to be dosing very, very heavy for a low light, low CO2 tank with relatively slow growers.
You mention adding more plants but if they are more Rhizome, and rosette plants they will still be slow growers, and not consume as much.

Hopefully someone with more experience and knowledge dosing can chime in.

Visit my 125 profile and gallery or my 5 gallon low-tech. Proud member of:

--May the floor under your tank always be dry, and your glass clear!!!
tazcrash69 is offline  
post #5 of 5 (permalink) Old 08-28-2007, 03:49 PM Thread Starter
Algae Grower
PTrader: (2/100%)
Join Date: Jun 2007
Location: canada
Posts: 13
Yeah, I wasn't sure if my dosing regime was appropriate or not, thats why I decided to post and ask questions first

Btw, if anyone else has any other suggestions, that would be great too. Still trying to figure out an appropriate dosage amount!
fxie is offline  

Quick Reply

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


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

Email Address:


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

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