Posted: Mon Aug 20, 2007 1:32 am Post subject: 6 questions abt going on with a co2 injected planted tank..
Started my first pressurized co2 planted tank..details:
Tank size: 28"Lx22"Bx30"H (not to worry, access is on three sides.)
Lighting: 1x 150W daylight Osram 6500k MH. (only going to put greens).
Substrate: 1/2inch baked laterite topped with 4, 4.5" river sand.
Filter: Internal filter with attached DIY diffuser.
Fish: none as yet.
Plants: Put many stem plants as advised - including Hygrophila polysperma, Hygrophila corymbosa, Hygrophila difformis, Bacopa caroliniana, Cabomba caroliniana, and others including, Rotala rotundifolia, Java ferns, Vallisneria spiralis var.tortissima, Tonina sp.'belem', 2 diff kinds of grass, and lots of glosso (courtesy: venkatji!!)
Questions: 1) The plants are put in today itself with 60% occupied by the aggressive plants and 20-25% with glosso, so how do i start my light regime? Currently i am thinking of starting with around 6-7 hours considering its a MH.
2) When do i start co2(also, what is the optimum bubble count\sec?) when to start ferts dosing? I was thinking maybe after around 2 weeks.
3) Water changes in the first 1-2 months? I am thinking around 20% every 2-3 days (not including weekly 50%).
4) At what point do i start putting some demanding plants like nuphar etc.?
5) Personal suggestions for glosso please!
6) Do any of you planted guys actually test for co2 levels? As in, with ph/kh/co2 table?
Will update with some photos on tuesday for sure, just had to kick start the thread for some much needed advice!!
Joined: Jun 29, 2003 Posts: 7087 Location: Bengaluru, India
Posted: Mon Aug 20, 2007 12:19 pm Post subject: Re: 6 questions abt going on with a co2 injected planted tan
1. Ok do that
2. You should start CO2 as soon as you fill up the aquarium with water. Ferts dosing can wait a week to 10 days. After which go to the levels indicated by EI, use Chuck Gadd's Calculator to find the quantity for macros. Don't dose MgSO4. It's not required. Don't come back and say I am using PMDD and I have algae. Your tank is highlight (MH) You need to add KNO3, KH2PO4 and K2SO4 along with PMDD and keep all levels up. Including CO2. If algae starts with the above dosing, increase your CO2.
4.You can put them in right now!
5.Not from me!
6. Nope, I did it initially in the beginning, but since I add phosphates to my tank it screws around with pH. So it's not very reliable. 1 bubble per second through a reactor is good enough CO2.
Posted: Mon Aug 20, 2007 12:37 pm Post subject: Re: 6 questions abt going on with a co2 injected planted tan
Don't dose MgSO4. It's not required. Don't come back and say I am using PMDD and I have algae.
Meaning do not add MgSO4 to your main PMDD soup right?
go to the levels indicated by EI, use Chuck Gadd's Calculator to find the quantity for macros.
Yes i have that, but just a doubt, my tank is an orthodox sized as you see, i mean there is lot of unused 'space' in the tank due to the height... so should i dose a little less than what he suggests?
Joined: Jun 29, 2003 Posts: 7087 Location: Bengaluru, India
Posted: Mon Aug 20, 2007 4:19 pm Post subject: Re: 6 questions abt going on with a co2 injected planted tan
There is no need to add it separately. Adding a small amount to your PMDD will not make a difference.
Chuck Gadd's calculator also tells you how much MgSO4 to add. That is for very soft water. In our tap water in almost all cities there is enough Mg. Adding more in teaspoons or fractions of teaspoons will create problems after a while. Mg stops the uptake of other micros after a while.
Posted: Mon Aug 20, 2007 5:23 pm Post subject: Re: 6 questions abt going on with a co2 injected planted tan
I think you are talking in terms of PMDD not EI.
Dosing less relative to the MH lighting and CO2 WILL probably give you algae as it will cause the imbalance in uptake that you are talking about. As I understand Tomâ€™s method, the idea is to always ensure that you err on the positive side of dosingâ€¦ergo, better to dose more than to dose lessâ€¦
Posted: Sat Aug 25, 2007 10:41 pm Post subject: Re: 6 questions abt going on with a co2 injected planted tan
Hey people, updating with some pics and more details..
As you can see, almost all are stem plants, some glosso.. only 2 amano shrimps.
1) Is the glosso planted right? Is that enough space between them?
2) Should i fill the space currently 'reserved' for the Glosso?
Current lighting around 6-6.5 hours, co2 1 bubble per 3 secs, no dosing as yet, water changes 20% every alternate day, 2 drops of glutaraldehyde every day.
Getting some algae, will keep updating with pics as per events..
Last edited by cokeamod on Sun Aug 26, 2007 1:52 pm; edited 1 time in total
Joined: Jun 05, 2006 Posts: 867 Location: Bangalore
Posted: Sun Aug 26, 2007 9:51 am Post subject: Re: 6 questions abt going on with a co2 injected planted tan
Nice looking Tank,
I have a strong feeling that the light is not sufficient for the glosso, they seem to be reaching for the light.
Also notice that you have a few dark spots ie, the spread of your light is not reaching all the areas of your tank.
If you increase the glosso you will need to work on the lights as well.
Note: glutaraldehyde is known to be fatal to shrimp. And i am not sure but is it necessary to use glutaraldehyde when you already have Co2 ?
Posted: Sun Aug 26, 2007 10:33 pm Post subject: Re: 6 questions abt going on with a co2 injected planted tan
glosso looks fine to me...
They should start settling down within a week if the light is sufficient. Let the space between them remain. They will need it when they spread out. Did you have any die-off due to the emersed growth?
What hapened to the hair grass. I don't see it in the tank?
Joined: Jan 12, 2006 Posts: 979 Location: Bangalore
Posted: Mon Aug 27, 2007 11:36 am Post subject: Re: 6 questions abt going on with a co2 injected planted tan
The tanks looking good! That substrate (river sand) looks reach!
The glosso is ready to take off now, it will grow fast if you trim the ones that are growing tall, I did it and then had a great carpet in about a month.
Only one concern, the glutaraldehyde, hope you know some plants also get affected by it. Agreed itâ€™s an algaecide but the glosso might also get affected.
If possible remove the glutaraldehyde slowly out of the equation, and start the dosing in another week or so.
The space is perfectly fine it will be covered soon!
Posted: Mon Aug 27, 2007 2:11 pm Post subject: Re: 6 questions abt going on with a co2 injected planted tan
Thanks harshal for your suggestions.. though right now its nothing more than an amateurs tank.. still waiting a bit to add some rosette or bulb plants..
By the way, anyone in mumbai doing any trimming, kindly pm me!
Good idea on the trimming, just waiting a bit for them to show new growth cause they were not in a submersed state earlier..
Agreed itâ€™s an algaecide but the glosso might also get affected.
Didnt find anything of concern, anybody has any experiences regarding glosso and GD?
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