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Topic Review (Newest First)
01-22-2015 09:08 AM
burr740
Quote:
Originally Posted by ichristos View Post
Hi jeffkrol, dhg was meticulously separated into max 10 blades each then planted. Learned that lesson

As far as root tabs are concerned, I found the following:
15% N
- 6.5 NO3
- 8.5 NH4
6% P2O5
- 4.8% soluble potash
12% K2O
2% MgO
9% sulphur
0.02% B
0.01%Zn
Low chlorine

Suggests application 2-3 times/year so I suppose its slow release. Is this a good candidate for root tabs? I will be ordering some ready made osmocote plus root tabs - if I can find someone willing to ship here
Without looking up and comparing ingredients, let me just say you have to be careful choosing terrestrial plant ferts for the aquarium. More often than not the source of nitrogen is urea, which is bad, or just straight ammonia.

I do know a lot of people use Job's plant spikes, but from what Ive read you're asking for a nightmare if you ever up root them down the line. Dont ask me why.

Personally I would only use Osmocote Plus specifically, or aquarium brand root tabs. The latter can be very expensive compared to Osmocote+. Also you have the added advantage of making your own tabs with however much you want, or just adding the individual balls. That what I did with the DHG. I took tweezers and poked down single balls all over the place.

Fwiw Osmocote Plus contains both macros and micros. Regular Osmocote only has macros.
01-22-2015 08:38 AM
agro
Quote:
Originally Posted by umarnasir335 View Post
Just wanted to pipe in with my own setup using 5 CFL fixtures on all 3 of my planted tanks.

The lamps used are the typical walmart ones that come in black. I was kind of apprehensive since the fixture is supposed to handle 13w max, but I went ahead and put in a higher wattage bulb anyway

I think I can grow anything with this setup on my 20 Long (also running 2x2 liter DIY co2 - soon to be replaced with paintball setup).
The lamps on the left and right run 26w GE 6500K bulbs @ 1600 lumen.
The middle lamp is a Great Value 19w @ 5000k and 1300 lumen.

The 20 High has a Jebo power compact fixture running 48w and I include the lamp with the same 19w bulb for an extra boost for about 2-3 hours per day once I get home from work.

3 gallon on top is running a 14w Great Value bulb, 5000k @ 800 lumen. The pearlweed has already started to carpet after a week
Your rack frightens me, the amount of bowing you have on those shelfs + that tank on the side with no support to corners. You love to live dangerous dont you?
01-22-2015 07:53 AM
ichristos
Quote:
Originally Posted by jeffkrol View Post
Can't tell by the photo but did you leave it clumped together? Seems that would be a no no.

I'm guessing light is not an issue.. Planting and types of fert. might be.. Finicky little plant..
Hi jeffkrol, dhg was meticulously separated into max 10 blades each then planted. Learned that lesson

As far as root tabs are concerned, I found the following:
15% N
- 6.5 NO3
- 8.5 NH4
6% P2O5
- 4.8% soluble potash
12% K2O
2% MgO
9% sulphur
0.02% B
0.01%Zn
Low chlorine

Suggests application 2-3 times/year so I suppose its slow release. Is this a good candidate for root tabs? I will be ordering some ready made osmocote plus root tabs - if I can find someone willing to ship here
01-21-2015 09:09 PM
jeffkrol Can't tell by the photo but did you leave it clumped together? Seems that would be a no no.

I'm guessing light is not an issue.. Planting and types of fert. might be.. Finicky little plant..
01-21-2015 08:00 PM
burr740
Quote:
Originally Posted by ichristos View Post
Dosing water column is supposed to remove need for a nutrient rich substrate.
Not necessarily. Heavy root feeders like swords and crypts still need ferts at the roots. Using an inert substrate means it has to be added somehow, ie root tabs, etc. Im not sure if dhg falls into this category, but mine didnt do anything until I gave them some Osmocote+. I was also dosing full EI with high light and co2.

Anyway, just sharing my own experience with that particular plant. Looking forward to those PAR measurements
01-21-2015 07:33 PM
ichristos
Quote:
Originally Posted by burr740 View Post
First of all what a nice looking set-up you have! Im no expert on dhg, but I wonder if it needs a more nutrient rich substrate? I recently grew a nice little patch in 100% sand, (medium to high-ish light, EI, CO2). It just sat there for a couple of weeks in a state of slow decline, until finally I stuck a bunch of loose balls of Osmocote+ underneath the entire area. Did them one at a time with tweezers. Few days later it started taking off.

I would think you have enough light, but again Im no expert. Very interested to see what your PAR readings are though, please post them when you can.
Thank you for your kind words. Dosing water column is supposed to remove need for a nutrient rich substrate. But this is from collected feedback not from own experience. PAR reader is now complete but I have to calibrate it, to dare rely on its response Will soon post results.
01-21-2015 08:48 AM
burr740 First of all what a nice looking set-up you have! Im no expert on dhg, but I wonder if it needs a more nutrient rich substrate? I recently grew a nice little patch in 100% sand, (medium to high-ish light, EI, CO2). It just sat there for a couple of weeks in a state of slow decline, until finally I stuck a bunch of loose balls of Osmocote+ underneath the entire area. Did them one at a time with tweezers. Few days later it started taking off.

I would think you have enough light, but again Im no expert. Very interested to see what your PAR readings are though, please post them when you can.
01-21-2015 08:03 AM
ichristos Hi,

I am running 3 x 32W CFL 6500K bulbs over a 50G tank. Tank is 35cm (13,7") tall, lights (lower rim of pendant) is at 55cm (21,6") from substrate.

I run pressurized CO2 (bbs beyond count), dose EI, run a 2000LPH (520GPH) sunsun filter on a spray bar at the long side of the tank. Substrate is clay (cat litter).

I can grow plants, but I am struggling with Eleocharis Parvula, cannot get it to carpet. I already "killed" a batch, I am on my 2nd attempt. Its been planted in mid November 2014. Only a few runners. I can see other people achieving a full carpet in less than 2 months...

I have just about finished the close enough par meter and will be taking readings soon.

But still, this begs the question: should I rule out light being a problem here?
Ideas & suggestions welcome.

07-22-2014 02:51 AM
burr740 Here's my 20H grow out tank with DIY Co2. I use it to propagate cuttings and experiment with different things. CFLs have worked great. Had 23 watt bulbs for a while but they were a little too bright. Now using 18 watt 5000K Ulitech bulbs from Lowes.

Some pics from various stages -


Recent (18watt bulbs)





Initial set-up (23watt 5000K Ulitech bulbs)




1 week later

07-10-2014 08:23 PM
cornbread_5 Are the spiral cfls ok to use or nah?
06-19-2014 08:43 AM
umarnasir335 Just wanted to pipe in with my own setup using 5 CFL fixtures on all 3 of my planted tanks.

The lamps used are the typical walmart ones that come in black. I was kind of apprehensive since the fixture is supposed to handle 13w max, but I went ahead and put in a higher wattage bulb anyway







I think I can grow anything with this setup on my 20 Long (also running 2x2 liter DIY co2 - soon to be replaced with paintball setup).
The lamps on the left and right run 26w GE 6500K bulbs @ 1600 lumen.
The middle lamp is a Great Value 19w @ 5000k and 1300 lumen.

The 20 High has a Jebo power compact fixture running 48w and I include the lamp with the same 19w bulb for an extra boost for about 2-3 hours per day once I get home from work.

3 gallon on top is running a 14w Great Value bulb, 5000k @ 800 lumen. The pearlweed has already started to carpet after a week
06-19-2014 03:24 AM
AGUILAR3 As long as you're able to place the lamp directly over the tank and its able to handle the watts your cfl is rated for, anything will do.
06-19-2014 02:27 AM
cornbread_5 i got two of the chicken brooders on my 40 will upgrade to a third one was just wondering since i see people using clip on lamps how good what the ones that stand on the ground be
06-19-2014 01:02 AM
burr740
Quote:
Originally Posted by cornbread_5 View Post
can you use the standing flexible lamps?
You can use any appropriately rated fixture these bulbs will screw into. How efficient depends on the quality of reflector, mounting position, distance from object, etc
06-19-2014 12:57 AM
cornbread_5 can you use the standing flexible lamps?
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