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Search: Keyword(s): ; Posts Made By: kwisatz
Forum: General Planted Tank Discussion 10-23-2014, 07:35 PM
Replies: 34
Views: 1,814
Posted By kwisatz
Thanks for shedding light!

The "terrestrial fertilizer" I used is called Cererit, which is a fertilizer without any chlorine (8% N, 13% P, 11% K, 2% Mg, 15% S + trace elements like B, Mb, Cu, Zn). This fertilizer is used in a...
Forum: General Planted Tank Discussion 10-23-2014, 09:16 AM
Replies: 34
Views: 1,814
Posted By kwisatz
Attempt to explain my motivation

Joe, I really respect you, and value your opinions.

I understand that my system is seeking equilibrium. Also I understand that ORP is a kind of bulk measurement, and we don't know what species...
Forum: General Planted Tank Discussion 10-23-2014, 08:55 AM
Replies: 34
Views: 1,814
Posted By kwisatz
Science vs. religion

Actually, I'm quite sure I have a lot less money than most people around, but I have a very strong desire/need to understand things going on in my tanks, so that's the reason I put all my spare money...
Forum: General Planted Tank Discussion 10-23-2014, 06:40 AM
Replies: 34
Views: 1,814
Posted By kwisatz
Hi all, first of all, thank you for your...

Hi all,

first of all, thank you for your comments!

Unfortunately, my concern is not to remedy the current situation in my tank (if the tank collapses totally I won't regret), but to understand...
Forum: General Planted Tank Discussion 10-22-2014, 09:06 AM
Replies: 34
Views: 1,814
Posted By kwisatz
Hi Joe, the temperature is somewhere around...

Hi Joe,

the temperature is somewhere around 22░C (72░F), so it's low. The pH is ~5.4, so also very low. I know this environment is not good for microbes. In normal case I won't allow the tank to...
Forum: General Planted Tank Discussion 10-22-2014, 05:25 AM
Replies: 34
Views: 1,814
Posted By kwisatz
Hi Joe, yes, the source of such a high...

Hi Joe,

yes, the source of such a high nitrates is for sure the terrestrial fertilizer which is leaking through the substrate into the water column. I can fix that, but I would like to test this...
Forum: General Planted Tank Discussion 10-21-2014, 08:44 AM
Replies: 34
Views: 1,814
Posted By kwisatz
I would like to resurrect this thread with the...

I would like to resurrect this thread with the following paradox:
I have a very small tank (3G = 12L) with lava stones and akadama as a substrate. I put there (into the substrate) a really big...
Forum: Lighting 10-01-2014, 08:23 AM
Replies: 25
Views: 4,799
Posted By kwisatz
He's not a member of this forum, and he did not...

He's not a member of this forum, and he did not post it yet anywhere, but just sent me his data. He used Apogee MQ-200 PAR meter.
Forum: Lighting 09-30-2014, 12:12 PM
Replies: 25
Views: 4,799
Posted By kwisatz
I have another set of data for ADA Aquasky 451...

I have another set of data for ADA Aquasky 451 (see the attached picture) from Dannyboy77.
http://prirodni-akvarium.cz/img/5_osvetleni/Aquasky_451.jpg

All data are in μmol/s.m2.
Forum: Lighting 09-29-2014, 03:04 PM
Replies: 168
Views: 19,840
Posted By kwisatz
http://prirodni-akvarium.cz/ → czech version (use...

http://prirodni-akvarium.cz/ → czech version (use Google Translate)
http://prirodni-akvarium.cz/en/ → english version (not updated as much as the czech version, because only about 5% of users...
Forum: Lighting 09-29-2014, 12:59 PM
Replies: 168
Views: 19,840
Posted By kwisatz
Questioning the results from calibrated Apogee MQ-200 PAR meter

All the measurements on my site (http://prirodni-akvarium.cz/index.php?id=mereni) were made by calibrated Apogee MQ-200 PAR meter [PS: You can use Google Translate]. Also all the data are clearly...
Forum: Lighting 06-22-2014, 09:04 AM
Replies: 25
Views: 4,799
Posted By kwisatz
In case of ADA Aquasky I would disagree with this...

In case of ADA Aquasky I would disagree with this statement, because as I saw a few tanks with this light, all seemed to have problems with algae. Light intensity of 150 Ámol PAR at the substrate is...
Forum: Lighting 06-20-2014, 07:34 AM
Replies: 25
Views: 4,799
Posted By kwisatz
DIY Aquasky

I would like to use LED strips with SMD 5630 or 5730 diodes (one meter of this LED strip with SMD 5630 chips should have 60pcs of diodes), as these are the brighest ones that are widely available. I...
Forum: Lighting 06-19-2014, 07:04 PM
Replies: 25
Views: 4,799
Posted By kwisatz
Aquasky PAR readings

According to my opinion the values for ADA Aquasky are a way too high. I think that for good results its enough to have 60-80 Ámol PAR at the substrate level. I use 70 Ámol PAR at my tanks and I'm...
Forum: Lighting 06-19-2014, 02:12 PM
Replies: 25
Views: 4,799
Posted By kwisatz
Finally, I have measured ADA Aquasky 361, Aquasky...

Finally, I have measured ADA Aquasky 361, Aquasky 451, and Aquasky 601 with PAR meter. So if someone's interested, you can look at my website, where there are the data with pictures:...
Forum: Algae 12-18-2012, 09:27 PM
Replies: 18
Views: 5,619
Posted By kwisatz
GDA = Chlamydomonas and/or Ankistrodesmus

I think it should be not Akineoscedesmus, but Ankistrodesmus (which belongs to the same class as Chlamydomonas => Chlorophyta > Chlorophyceae).

Still I know of some professors who identified this...
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