Is this EI - or just haphazard dosing? - The Planted Tank Forum
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 06-24-2012, 01:29 AM Thread Starter
Planted Member
mindfestival's Avatar
PTrader: (0/0%)
Join Date: Jul 2011
Location: Australia
Posts: 192
Is this EI - or just haphazard dosing?

Hi all,

In reference to my high tech, somwhat high light 95g.

I did not conduct my last water change for about 2 weeks, maybe more.

Although I am not dosing ferts daily, I have a dosing regime that is not really structured.

I use Seachem Iron and Potassium, and I also have a pre mix Macro and Micro.

After a water change i may dose a couple capfuls of Iron, then the following day I will dose a couple capfuls of P.

After a few days, I may dose my Macro and Micro in the same day, reaching the end of the week.

This more or less repeats itself, and not nessesarily in that order for the following week.

I suppose I have two questions here, if my nutrients are being consumed regularly, and I am not overdosing, then what benefit is the large weekly volume water change. (In reference to ferts only) ie, I do not need to reset the system, rather than maintain the water quality.

Second, if there were deficiencies, I would expect growth to slow, and the plants to start telltale signs, instead of algae (of which i have no problem)

Is this always the case?

I appriciate the broadness of my question.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

"Good judgement comes from experience, and much of that comes from bad judgement"
mindfestival is offline  
Sponsored Links
post #2 of 5 (permalink) Old 06-24-2012, 01:37 AM
Planted Tank Guru
PTrader: (0/0%)
Join Date: Jan 2010
Location: Contra Costa CA
Posts: 11,721
If you have found a system that works for you- dosing and water changes you can keep up with and a happy tank- who cares what it is called?
I started doing the EI recipe, and have changed how I do it to suit my tanks and my schedule. I may have changed it so much that it is not called EI any more.

When do you start calling your system by a certain name, and when is that name no longer applicable?
I think it is results that count.
Diana is offline  
post #3 of 5 (permalink) Old 06-24-2012, 03:13 PM
Planted Tank Guru
PlantedRich's Avatar
PTrader: (2/100%)
Join Date: Jul 2010
Location: United States
Posts: 12,048
I totally agree with Diana on this. All the things we read for folks to follow should always come with the warning that results will vary. If we all had the same water, tanks, plants and fish and fed the same food in the same way, there might be a workable rule but then we don't do that do we? We all would be better served if they told us we would have to adjust things as we need.
PlantedRich is offline  
post #4 of 5 (permalink) Old 06-24-2012, 05:27 PM
Planted Tank Guru
plantbrain's Avatar
PTrader: (267/100%)
Join Date: Dec 2003
Location: The swamp
Posts: 13,609
Ferts should be pretty flexible over a wide range, most plant folks place too much importance on the specifics. Many assume that it leads to algae and horrors of the 5th Level of Hell.

Even folks who should know better.....still promote this.

As long as you are slightly consistent and add something, relatively should be fine in many cases.

If you have a very high light CO2 tank, less so, if you have a lower light or non CO2, the flexibility increases.

Without realizing what other factors are involved...and having only done one or two different light/CO2 combos....many simply lack a global view of the various methods. Which is understandable.............but leads to various odd advice.

All methods grow plants, the question is, at what rate of growth?

Then answer lies in this article:

You can see every combo of CO2 and light, there is still some positive plant growth, the difference is that growth rate changes 17X depending on which method is used.

So you may have a difference of 20X with various rates of uptake for planted tanks.

So some tanks might do well without any dosing other than fish waste, whereas others need dosed maybe 2-3x a week.

Tom Barr
plantbrain is offline  
post #5 of 5 (permalink) Old 06-24-2012, 05:40 PM
Fat Guy In A Little Coat
tatersalad's Avatar
PTrader: (11/100%)
Join Date: Dec 2011
Location: Henderson, TX
Posts: 372
I agree with Tom, consistency is pretty dang important.
tatersalad 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:


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