Re: adding PO4 and KNO3 to eliminate algae?

[tcbiii@NOSPAMearthlink.net]

> > Dave.
> > www.okcomputerworks.com/aquarium.html
>
> AFAIK with fish in the tank your iron doesn't want to be much above 1ppm -
> any more than that doesn't do them a lot of good!

Ditto.

You will need to make sure there's enough NO3, PO4, K, GH(3 or
higher).
You can back off the traces, for a 20 gallon tank, the max amount
needed at high light etc is about 5 mls of Flourish/TMG etc every 3
days.
More and you are wasting the stuff.
By doing 50% weekly watrer changes you can re set the tank each week
and ensure a relatively constant level of PO4/NO4/K etc by dosing the
following per 20 gallon tank:

1/4 teaspoon K2SO4 once a week after water change
" " " KNO3 2-3x a week
2-4 rice grain's worth of KH2PO4 2-3x a week
5 mls of TMG/Flourish 2-3x a week.

Do 50% water change which removes any dosing errors you made with the
other mid week dosings. Repeat.

Becomes old hat fast.

Regards,
Tom Barr

[tcbiii@NOSPAMearthlink.net]

> > Dave.
> > www.okcomputerworks.com/aquarium.html
>
> AFAIK with fish in the tank your iron doesn't want to be much above 1ppm -
> any more than that doesn't do them a lot of good!

Ditto.

You will need to make sure there's enough NO3, PO4, K, GH(3 or
higher).
You can back off the traces, for a 20 gallon tank, the max amount
needed at high light etc is about 5 mls of Flourish/TMG etc every 3
days.
More and you are wasting the stuff.
By doing 50% weekly watrer changes you can re set the tank each week
and ensure a relatively constant level of PO4/NO4/K etc by dosing the
following per 20 gallon tank:

1/4 teaspoon K2SO4 once a week after water change
" " " KNO3 2-3x a week
2-4 rice grain's worth of KH2PO4 2-3x a week
5 mls of TMG/Flourish 2-3x a week.

Do 50% water change which removes any dosing errors you made with the
other mid week dosings. Repeat.

Becomes old hat fast.

Regards,
Tom Barr

[Iain Miller]

"Dave M. Picklyk" > wrote in message
...
> Can adding P04 and KNO3 reduce and eventually eliminate algae? I've heard
> rumbles about this around here. Can anyone explain that to this newbie?
>
> Would I have to test my PO4 and Potassium levels before making any
> decisions?
>
> I've been doing C02 (33ppm) for about 2 weeks now and algae has started to
> grow onto new plants I've added. I've also added 25 neons in the last week
> but am feeding them once every two days (higher nitrate levels?). Light is
> 2wpg PowerGlo bulbs on a 15 gal wide tank. I'm adding Ferreal +spureal
> mineral fertilizer for trace elements and iron, iron averaging out about
> 2-3.5ppm. I'm also doing 25% water changes every week.
>
> I will be getting a pomacea bridgsii snail soon, but I want to find out
the
> root of the problem.
>
> Dave.
> www.okcomputerworks.com/aquarium.html

AFAIK with fish in the tank your iron doesn't want to be much above 1ppm -
any more than that doesn't do them a lot of good!

[tcbiii@NOSPAMearthlink.net]

> > Dave.
> > www.okcomputerworks.com/aquarium.html
>
> AFAIK with fish in the tank your iron doesn't want to be much above 1ppm -
> any more than that doesn't do them a lot of good!

Ditto.

You will need to make sure there's enough NO3, PO4, K, GH(3 or
higher).
You can back off the traces, for a 20 gallon tank, the max amount
needed at high light etc is about 5 mls of Flourish/TMG etc every 3
days.
More and you are wasting the stuff.
By doing 50% weekly watrer changes you can re set the tank each week
and ensure a relatively constant level of PO4/NO4/K etc by dosing the
following per 20 gallon tank:

1/4 teaspoon K2SO4 once a week after water change
" " " KNO3 2-3x a week
2-4 rice grain's worth of KH2PO4 2-3x a week
5 mls of TMG/Flourish 2-3x a week.

Do 50% water change which removes any dosing errors you made with the
other mid week dosings. Repeat.

Becomes old hat fast.

Regards,
Tom Barr