Substrait Mix for Crpts - The Planted Tank Forum
 
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post #1 of 14 (permalink) Old 02-11-2004, 03:24 PM Thread Starter
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What is recommended as a good substrait mix for crypts? I've used laterite and topsoil in the past (primarily in pots) ... is topsoil beneficial under a thick layer of gravel?

Is Flourite of any value?

Thanks
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post #2 of 14 (permalink) Old 03-01-2004, 10:55 AM
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Care to share some info about the emersed mix, OW? I have some C. parva that I really need to do this with.

James
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post #3 of 14 (permalink) Old 03-01-2004, 12:23 PM
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James,
Why do you want to grow C. parva emersed?

Jeffery
I keep my crypts in a topsoil and clay substrate that is sealed with gravel. They do ok like that, I end up with a few extra to share.

OW please share the emersed mix, I have to flower a bunch of crypts so I can find out I have nothing more than 30 varieties of C. wendtii.

Sean

Aquascape? I'm a crypt farmer.

It's a fine line between fishing and standing on the shore looking like an idiot.

That IS an aquascape, it's titled "The Vacant Lot".
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post #4 of 14 (permalink) Old 03-01-2004, 01:51 PM
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Sean, I have had it in my tanks for 8 months and it has gone nowhere. In low light tank it just got a thick rhizome, in high light, it got BBA. It's still alive, but obviously not prospering. I'm hoping I can nurse it back to health and propagate more of it in emersed culture.

James
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post #5 of 14 (permalink) Old 03-01-2004, 10:37 PM
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Haha! I am in the same boat as Sean. I do think that all the crypts I bought, aside from the pontederiifolia and affinis, are all varieties of C. wendtii or becketii. I am hoping that literature is right and some will flower while submersed.

I have been playing around around with mixes for both emersed, submersed and for my regular potted plants. I like using clay and top soil but I will hold my judgement until I expiremented a bit more.
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post #6 of 14 (permalink) Old 03-01-2004, 10:47 PM
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It seems my crypts love the substrate chock full of nutrients, when I first got all my half dead free crypts I spiked the substrate (eco-complete/sand) on all but 2 of them... those 2 are now only half the size of the others, this also applies to some balansae's I planted.
I cant imagine growing any crypt out of the substrate with a suction cup... :?
They actually do well with only water column ferts ? That is interesting, I guess if the roots are free to draw on the nutrients from the water it would be the same. hmmmm
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post #7 of 14 (permalink) Old 03-02-2004, 02:41 AM
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I hope there is success in the new way for rearing Crypts! It would definitely change my view on the need nutrient substrates(my view on nutrients will still be static). It looks lush and gorgeous.

Kasselmann's book does say that some Crypts can be grown hydroponically. My knowledge in that is very primitive. Are substrates truly needed for hydroponics?
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post #8 of 14 (permalink) Old 03-02-2004, 02:59 AM
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Growing something using hydroponics means growing them without soil.
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post #9 of 14 (permalink) Old 03-02-2004, 09:55 AM
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And how do they look in a substrate? Look here for the other half of the story

Sean

Aquascape? I'm a crypt farmer.

It's a fine line between fishing and standing on the shore looking like an idiot.

That IS an aquascape, it's titled "The Vacant Lot".
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post #10 of 14 (permalink) Old 03-02-2004, 05:13 PM
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I grow my crypts, submersed/emersed and I used some Seachem florite and also laterite. The laterite was from gravel I introduced when I upgraded my tank from a 29 to a 75.

I also have a question for you guys (sorry to take control of the post):

Do any of you crypt keepers use liquid fertilizer in your tanks? I have some Seachem Flourish but I don't want to use it if it will promote algae growth. I feed my fish twice a day, and I read that in many situations this can be sufficient fertilizer. I don't dose CO2 and only use 110 W of my 220W PC fixture. I also use RO water exclusively and on occasion add this electrolyte solution. I also have Java Moss and Fern, so since they are epiphytes, I am unsure if I need the Flourish.
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post #11 of 14 (permalink) Old 03-02-2004, 09:14 PM
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Thanks, OW, I'll be giving this a try once the weather gets a little warmer.

James
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post #12 of 14 (permalink) Old 03-02-2004, 09:21 PM
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robitreef: I've found that if you use only fishfood as fertalizer you end up with too high of a phosphate/nitrate ratio. This can lead to algea problems.
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post #13 of 14 (permalink) Old 03-03-2004, 03:42 PM
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Digger:

Then do you recommend that I use the SeaChem liquid fertilizer? I already used one 15lb bag of Flourite, and had laterite in the gravel I transferred from the 29. Maybe it would be better to add Flourish tabs instead?
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post #14 of 14 (permalink) Old 03-03-2004, 04:02 PM
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I recommend getting pure KNO3, K2SO4, KH2PO4 instead. It's cheaper and you can control ratio between NO3 and PO4 based on your results from water tests.

I get mine here:
http://www.litemanu.com/cgi-bin/html....1.44924425436
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