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Date: 20 Jun 2004 12:37:54
From: blank
Subject: Duplarit G -- is it worth the money?
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I seem to have learned the basics of keeping the fish alive, but am still
hopeless with aquatic plants,so am considering starting again using Duplarit
G in the substrate. So here are my circumstances--perhaps someone will be
kind enough to advise whether Duplarit will be worth the cost.
Tank is 75 gal freshwater community setup about 4' x 18" x 2', with a 150
Gal/hr trickle filter & a Fluval 4 plus internal filter (260 Gal/hr) which
I run at about 50% flow. It has been established for 9 months.
Lighting is 3 x 30w T8 fluro tubes (Actinic blue, ColorMax and plain white).
I realise lighting is low, but cant do much about it because the hood is
pre-formed plastic to suit the tank (once piece of glass with rounded
corners). Lights on for 10-11 hours daily.
There are about 75 mainly small fish, such as neons, mollies, barbs,
rasboras, dwarf gouramis, corys, loaches, guppies, glass cats, danios etc.
I have, I believe, learned not to overfeed. Although I do get quite a bit
of green algae, but that is probably due to the fact that the tank gets
morning sun for about an hour--but the fish like the sunlight, so I can live
with the algae.
Substrate is aquarium gravel, with several largish pieces of driftwood.
Weekly water change of 20%; test results consistently as follows: pH 7.8,
EC 400, GH 7, KH 5, Nitrate 7, Phosphorous 0.75
The Krib CO2 table tells me that my water is providing virtually nil
available CO2, alas.
Now we come to the poor, sad plants. They are just the usual val, java
fern, sword plants, elodea, heteranthera. They cover about 20% of the
bottom in a more or less sickly, greenish-yellow looking miserable mess.
The val grows ok, but thats about all that does. Ive been trying various
combinations of excel, excel flourish and flourish nitrogen, using them at
the recommended dosage for a couple weeks, then adding or subtracting a bit
here and here for a couple weeks, looking for the right ratios. But, alas,
its still an essentialy dismal failure.
So my plan is to buy 1.2Kg of Duplarit G and start again. But that will
cost about $100 Australian. So I dont want to go to all the trouble and
expense unless there is a reasonable chance it will make a big difference.
What do you folks suggest I do?
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Date: 20 Jun 2004 20:10:25
From: Eric Schreiber
Subject: Re: Duplarit G -- is it worth the money?
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blank wrote:
> Tank is 75 gal freshwater community setup
> Lighting is 3 x 30w T8 fluro tubes (Actinic blue, ColorMax and plain
> white).
As others have noted, the lighting is a bit low.
> I realise lighting is low, but cant do much about it because
> the hood is pre-formed plastic to suit the tank (once piece of glass
> with rounded corners).
Any chance of replacing the existing bulbs with Compact Flourescents?
They'll put out a lot more light in the same space.
I see a couple of other people have suggested that you need CO2, and it
would certainly help. However, providing CO2 on a 75 gallon tank is not
a trivial task. And, you may not really need it. I was using CO2 on my
heavily planted 20 gallong for awhile, and it worked really well. But I
got tired of replacing the yeast solution and just stopped using CO2,
and my plants many months later are doing just fine.
Something you might consider is trying different kinds of plants. I've
got about 8 species of plant in my tank, but I've tried at least twice
that many. You may find a variety that does really well in your tank.
--
Eric Schreiber
www.ericschreiber.com
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Date: 20 Jun 2004 09:26:03
From: blarg news
Subject: Re: Duplarit G -- is it worth the money?
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my guess is that it is definitely your low CO2
i was unable to keep any plant alive in my tank, I added a CO2 generator and
diffusor and suddenly not a single plant was dying.
your best bet is to try solving your CO2 problem first and see what happens.
"blank" <blank@void.net > wrote in message
news:40d4f914$0$28957$5a62ac22@per-qv1-newsreader-01.iinet.net.au...
> I seem to have learned the basics of keeping the fish alive, but am still
> hopeless with aquatic plants,so am considering starting again using
Duplarit
> G in the substrate. So here are my circumstances--perhaps someone will be
> kind enough to advise whether Duplarit will be worth the cost.
>
> Tank is 75 gal freshwater community setup about 4' x 18" x 2', with a 150
> Gal/hr trickle filter & a Fluval 4 plus internal filter (260 Gal/hr)
which
> I run at about 50% flow. It has been established for 9 months.
>
> Lighting is 3 x 30w T8 fluro tubes (Actinic blue, ColorMax and plain
white).
> I realise lighting is low, but cant do much about it because the hood is
> pre-formed plastic to suit the tank (once piece of glass with rounded
> corners). Lights on for 10-11 hours daily.
>
> There are about 75 mainly small fish, such as neons, mollies, barbs,
> rasboras, dwarf gouramis, corys, loaches, guppies, glass cats, danios etc.
> I have, I believe, learned not to overfeed. Although I do get quite a bit
> of green algae, but that is probably due to the fact that the tank gets
> morning sun for about an hour--but the fish like the sunlight, so I can
live
> with the algae.
>
> Substrate is aquarium gravel, with several largish pieces of driftwood.
>
> Weekly water change of 20%; test results consistently as follows: pH 7.8,
> EC 400, GH 7, KH 5, Nitrate 7, Phosphorous 0.75
>
> The Krib CO2 table tells me that my water is providing virtually nil
> available CO2, alas.
>
> Now we come to the poor, sad plants. They are just the usual val, java
> fern, sword plants, elodea, heteranthera. They cover about 20% of the
> bottom in a more or less sickly, greenish-yellow looking miserable mess.
> The val grows ok, but thats about all that does. Ive been trying various
> combinations of excel, excel flourish and flourish nitrogen, using them
at
> the recommended dosage for a couple weeks, then adding or subtracting a
bit
> here and here for a couple weeks, looking for the right ratios. But,
alas,
> its still an essentialy dismal failure.
>
> So my plan is to buy 1.2Kg of Duplarit G and start again. But that will
> cost about $100 Australian. So I dont want to go to all the trouble and
> expense unless there is a reasonable chance it will make a big difference.
> What do you folks suggest I do?
>
>
>
>
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Date: 20 Jun 2004 11:29:08
From: peepod
Subject: Re: Duplarit G -- is it worth the money?
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You've answered your problems:
Lighting - too low. (actinic - not needed in freshwater tanks)
No CO2.
With your current setup, adding Duplarit G will do you no good.
blank wrote:
> I seem to have learned the basics of keeping the fish alive, but am still
> hopeless with aquatic plants,so am considering starting again using Duplarit
> G in the substrate. So here are my circumstances--perhaps someone will be
> kind enough to advise whether Duplarit will be worth the cost.
>
> Tank is 75 gal freshwater community setup about 4' x 18" x 2', with a 150
> Gal/hr trickle filter & a Fluval 4 plus internal filter (260 Gal/hr) which
> I run at about 50% flow. It has been established for 9 months.
>
> Lighting is 3 x 30w T8 fluro tubes (Actinic blue, ColorMax and plain white).
> I realise lighting is low, but cant do much about it because the hood is
> pre-formed plastic to suit the tank (once piece of glass with rounded
> corners). Lights on for 10-11 hours daily.
>
> There are about 75 mainly small fish, such as neons, mollies, barbs,
> rasboras, dwarf gouramis, corys, loaches, guppies, glass cats, danios etc.
> I have, I believe, learned not to overfeed. Although I do get quite a bit
> of green algae, but that is probably due to the fact that the tank gets
> morning sun for about an hour--but the fish like the sunlight, so I can live
> with the algae.
>
> Substrate is aquarium gravel, with several largish pieces of driftwood.
>
> Weekly water change of 20%; test results consistently as follows: pH 7.8,
> EC 400, GH 7, KH 5, Nitrate 7, Phosphorous 0.75
>
> The Krib CO2 table tells me that my water is providing virtually nil
> available CO2, alas.
>
> Now we come to the poor, sad plants. They are just the usual val, java
> fern, sword plants, elodea, heteranthera. They cover about 20% of the
> bottom in a more or less sickly, greenish-yellow looking miserable mess.
> The val grows ok, but thats about all that does. Ive been trying various
> combinations of excel, excel flourish and flourish nitrogen, using them at
> the recommended dosage for a couple weeks, then adding or subtracting a bit
> here and here for a couple weeks, looking for the right ratios. But, alas,
> its still an essentialy dismal failure.
>
> So my plan is to buy 1.2Kg of Duplarit G and start again. But that will
> cost about $100 Australian. So I dont want to go to all the trouble and
> expense unless there is a reasonable chance it will make a big difference.
> What do you folks suggest I do?
>
>
>
>
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