Posted: Thu Sep 24, 2009 7:09 pm Post subject: E.Tenellus "micro" Dying , after yellowing - HELP
I have a planted tank of size 2 X 1 X 1.
I wanted to carpet the tank with E.Tenellus micro and planted them 5-6 weeks back. But gradually the plants lost all their leaves, post yellowing. I planted them as Suraj (nature_lover) suggested i.e the crown along the gravel line and the roots below gravel. They are actually planted quite densely , about 0.5 cm apart. But now most of them have lost all their leaves .
But the problem is , I dont see new leaves either. Amazon Sword plants are also turning brown, and no new leaves are growing.
I am giving 3WPG of T5 lighting , DIY CO2 , 6 hour photo period , and temperature is 26.5-27 degrees C.
My substrate system is Prodac Humus and Laterite as base. The upper part is plain river gravel, total substrate depth being about 2.5-3 inch.
I am dosing PMDD solution, for micros , I use Microsol B from Vrdhaman Fertilizers.
Is there a problem with my substrate , as no plants are growing. I am ready to change it and do anything to make the plants grow !
Please help me , because till date I have failure in growing all plants - although I am providing all the necessary elements. I am now frustrated like nothing !
Joined: Jan 12, 2006 Posts: 979 Location: Bangalore
Posted: Thu Sep 24, 2009 7:33 pm Post subject: Re: E.Tenellus "micro" Dying , after yellowing - H
You have mentioned Micro ferts what about macros like potassium, nitrates etc. Also there is some problems now with Microsol B, from what I have heard from the forum, the iron content is far lesser than it use to be. Let me know about the Macro dosing lets see If we can come up with some solution for you.
Another suspect would be the CO2, the dosing will be Erratic at best with a DIY set up look at a pressurized system seriously.
Joined: Oct 28, 2004 Posts: 2450 Location: Salem, TN
Posted: Thu Sep 24, 2009 8:27 pm Post subject: Re: E.Tenellus "micro" Dying , after yellowing - H
If your laterite has turned light orange or pale pink to almost white, it possibly has lost all its iron. Changing the substrate will help. Still, I have a low-tech tank with quite a few rosettes running for more than 3 yrs without a laterite change. Laterite that is deep red would be a good choice.
Posted: Thu Sep 24, 2009 10:14 pm Post subject: Re: E.Tenellus "micro" Dying , after yellowing - H
I have an HOB filter and I keep water level high to cut down surface agitation. Filter flow is 300 l/hr and has a mixture of bio balls , floss etc
I had added 3 X Packets of Humus as bottom layer. Then 2 " laterite mixed with gravel ( I forgot the proportion , but the proportion was something that I read over IAH only ) , and then a final layer of normal river gravel.
Posted: Sat Sep 26, 2009 11:17 am Post subject: Re: E.Tenellus "micro" Dying , after yellowing - H
First take out a few tenellus randomly ( 3- 4 should do) from your tank and see if the root structure is developed and is absolute white in color. If yes, leave it as it is, they will pick up. If not, you need to pull out all the tenellus, cut the root short remove dying/decaying leaves and plant individually with a gap of 1 inch. Make sure the root system stays well inside the substrate (nutrient layer), don't worry about the crown, just keep it a little out. This goes for the amazons as well. light penetration and a little water circulation at the lower part of the plants/tank is also very important.
Dosing and co2 are ok, but you need to make sure that there should be some place for bacterial colonization as well. HOB filters are basically designed for mechanical filteration only. you need both mechanical and biological filteration. you can opt for a canister filter. once the filter/tank is mature, every thing will start kicking in.
DIY co2 is good, but not consistent, switch over to pressurized system to make it constant, beleive me it helps a lot. What is amout of CO2 you are injecting?
Lighting is ok, take the photo period up to eight hours.
Posted: Sun Sep 27, 2009 8:08 am Post subject: Re: E.Tenellus "micro" Dying , after yellowing - H
I don't know what root you guys are talking about.
It is a E.Tenellus "micro" variety that has very less roots.
There were no distinct absolute white roots down there even when I got them. The plants were about 2.5 cm in height and had about 3-4 leaves emerging from the shoot. There were brownish coloured 2-3 roots since I bought them.
Yes I will upload a pic , but at present it is nothing but a skeleton ! I will upload once I finalize a scape.
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