Expert Planted Tank Substrate Suggestion

Coulter

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Feb 27, 2005
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I gathered the following information while listening to a talk from reknowned fish expert Dr. Herbert Axelrod. You may know him from the fact that several fish are named after him, and also as the founder of Tropical Fish Hobbyist and author of numerous best-selling fish books.

As the title says, this is for substrate only. Lighting is obviously a very important matter, but it will only be loosely discussed in this thread. CO2 will not be discussed except for this sentence, since co2 is for the most part not required with this substrate unless you are trying to grow really difficult plants. Other general tips will also be given at the end of the thread.

The substrate consists of 5 layers. The lowest layer is often seen in pet stores as "Tex-Blast Gravel". It is essentially sand-blasting sand, and can often be found at auto-mechanic stores, hardware stores, etc. This layer should be about an inch thick.

Layer 2 is plain ole play sand. This gives the plants something firm to root into. The thickness of this layer is not extremely important, but a half inch will suit your tank well.

Layer 3 is the most important, and surprising, layer. Layer 3 is potting soil. The potting soil MUST be phosphate and nitrate free, however. I have used Ferti-Lome potting soil in the past and have had really good results with it. This layer should be anywhere from 1.5 to 2 inches thick.

Layers 4 and 5 are repeats of layers 2 and 1, respectively.

I have always set up my tanks to make them look like the entire tank is only one subtrate when viewed from the front, but I leave the sides looking like several layers so I can explain the process to customers at my pet store.

Other important notes:

*When filling the tank with water, be careful not to mix the layers! I place a towel or something over the gravel, and then my hand over the towel, and put the water onto my hand in order to prevent any layer mixing.

*Use RO water! Tap water is usually way off in many aspects from what kind of water the plants need.

*Driftwood, rocks, etc. should be added prior to placing the last layer in the tank.

*Place the plants in the tank prior to filling the tank with water. Be sure to try and keep the plants wet as your are placing them in the tank, and filling the tank with RO water.

*Use ghost shrimp to help keep plants clean. For reference, I keep a couple dozen in my 29g tank.

*Find and purchase malaysian snails!! This is very important as malaysian snails keep the substrate from going anaerobic! If the tank becomes over-populated with those snails, throw in any botia or loach member for a day or two.

*Most of your planting should be done at the setup, with later plantings only being used to fill in slow growth areas.

*Be careful if you ever move plants as to not mix up the layers.

*Use a liquid supplement to help give nutrients for your plants. I've had great success with Tetra's FloraPride.



Feel free to ask if you have any questions. As far as lighting, the more light you have the better. Unfortunately I only have 1 planted tank setup due to the size restraints of my pet store. But on this 29g tank, I have 2 strip lights. One strip light has an actinic bulb in it, while the other strip light I gutted and put incandescent sockets in it. In those sockets I have a total of 4, 25-watt compact flourescents that I bought at Wal-Mart for something like 5 dollars a bulb.

Again, most of this information was obtained from a lecture given by Herbert Axelrod, and I in no way claim myself as the discoverer of this information. Like I said, co2 should not be required, especially if you use plants like swords, cryptocornes, etc, etc. More difficult plants, such as anacharis, or most plants with red coloring in them, may require the addition of co2.

Good luck with your plants!
 
I disagree with needing RO water in any but rare cases. Plus 100% RO water is way off in many aspects from what kind of water plants need.

Plus the amount of light has an extreme effect on needing CO2. I find this greatly misleading.

I also think it is overcomplicated.

I review the stats of a lot of planted tanks and around 70% of the most beautiful tanks use 100% flourite.

So why go to such trouble with the substrate?

All IMO and all. No disrespect intended.
 
Let's see Dr. A was last photgraphed taking refuge in Cuba from US tax authorities, was caught I believe somewhere in Europe.

Layered subtrates do not last. Even if you do not ever re-scape (and what an absurd restriction that is), the finest particle sizes will end up at the bottom, and the largest will be the surface. In the real world, folks do replant, change plants, divide stands of plants, renew stem plants, remove overgrown rosette plants. This is not poor advice, it is ridiculous IMHO.

RO water is not needed for growing plants. RO alone, if at all high purity (normal operation of the RO unit) is unsuitable for keeping either fish or plants.

If lighting is at or above 2W/gallon, CO2 will be helpful, if beyond 2.5-3W/gal (depending on the actual light delivery to the tank) it is absolutely required unless you plan on an algae farm.

I assume that you do mean well, but that advice is at least 20 years out of date, never did work very well, and is at least 10x as much trouble as the results you will get from it.

NIMT.

There are so many decent to excellent substrates available today, so many good to excellent lighting options, and multiple different but effective handling techniques, that a few minutes on The Barr Report, Chuck Glad's site, Aquatic Plant Central, Aquabotanic, and a number of other sites will give you a huge choice of approaches which do work and work well - all based on real knowledge and experience.
 
I agree with Watcher and RTR.

Funny thing, I read almost this exact same post, or method, a couple of months back when I started looking on the web for plant information. Wish I could remember where that was.

Roan

Axelrod skipped, eh? Heh.
 
All I have to say is...HAHAHA....personally I find this funny, I cant count the number of times that I have replanted a tank...somethings just look better in a different spots especially after they have established themselves. Personally I prefer Eco-Complete as my favorite plant substraite, but thats just me...and CO2 is REQUIRED as for mentioned for tanks above 3wpg or you're just growning different forms of algae. Most of what I have read is that next to Lighting CO2 is the second most important thing in a tank...and I dont dose very much chemical ferts. and my plants seem to be doing great...I have to trim about every week or two in a 30...I dont claime to have the answer to everything, but CO2 and Lighting are the most important things...I have a 10g that I started with a sand substrait and it actually grows some plants that I cant grow anywhere else...ie Dwarf Hairgrass...I just think that someone was mis-informed and gulliable maybe
 
Dr. A did many positive things for this hobby, there is no denying that. He also padded his publications shamelessly, but incorporated some magnificent photography into them - on which he gets credit for promoting the highest possible standards. Too bad the same the same cannot be said for his text, or for his IDs - the former being frequently questionable and the latter pathetic IMHO. He also drove his competition from the market by lawsuits and highly questionable practices. Today with Trump a popular hero/antihero, Dr A's rehab should be a snap, but to me he a man who fought dirty and unfairly and cheated when it was not even needed, so I will never have any respect him.
 
Coulter said:
I gathered the following information while listening to a talk from reknowned fish expert Dr. Herbert Axelrod.

And that some how makes him an aquatic plant expert?
I know aquatic plants, but that does not imply I know beans about aquatic insects.

The substrate consists of 5 layers.

Sounds complicated, what happens to these layers when you uproot and replant? A mess.

Layer 3 is the most important, and surprising, layer. Layer 3 is potting soil. The potting soil MUST be phosphate and nitrate free, however.

Why should it be free of these plant, ahem nutrients?

*Use RO water! Tap water is usually way off in many aspects from what kind of water the plants need.

This is not true and spread myths about plants.
I know on no plant method that this is true for.

*Use ghost shrimp to help keep plants clean. For reference, I keep a couple dozen in my 29g tank.

These are lousy critters for helping plants, they eat no algae, try Amano shrimps if you want a real plant friendly shrimp that eats algae.

*Find and purchase malaysian snails!! This is very important as malaysian snails keep the substrate from going anaerobic!

They do but it's not significant. The plant's roots bring more O2 to the substrate than these things ever would/could and if you do not put a bunch or soil down there to start with, the bacteria will not use up all the O2 decomposing all the soil.

As far as lighting, the more light you have the better.

As I shudder.........


Like I said, co2 should not be required, especially if you use plants like swords, cryptocornes, etc, etc. More difficult plants, such as anacharis,

If you feel that plant is err more difficult.......well.........
Adding CO2 will help more than the substrate, adding CO2 will help more than more liquid ferts like the Tetra stuff...........and in most cases, it'll help more than more light.........

Thanks for talking about his talk here. I do not agree with many things, but I'm not known to be very quiet.

Regards,
Tom Barr
 
After reading everyone's comments I think what bothers me the most about this post what Tom nails in his first two comments:

"And that some how makes him an aquatic plant expert?
I know aquatic plants, but that does not imply I know beans about aquatic insects."

It's unfortunate that when someone who is considered an expert by many people on only one aspect of aquaria (does fish ID count?) decides to lecture on an aspect they are not an expert on and people view his or hers words as "Pure Gold" and/or "Words of Wisedom".

FWIW, I'm pretty sure this is a very old old lecture that Axelrod gave. I'm going to see if I can find a reference and date it.

Roan
 
the whole thing seems awfully complicated.

btw what does RO stand for?

i aslo thought ghost shrimp were good for cleanup!
 
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