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Old 07-02-2003, 06:21 AM
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Default Is this Pearling?

Do you think the diffuser would be ok to use on a pressurized system?

"dpots" wrote in message
Phil, I too can report good results with the Nutrafin system. So far
I have seen a lot of growth in my Vals, crypts, horwort, and anubias.
I don't think this system puts out enough Co2 for tanks above 30g or
so. I really like the diffuser and will probably use it to attach to
a 2 liter DIY system. Considering that I only paid $19.00 for the
entire system, I would recommend it for the diffuser alone. I have
been running this system for about 2 weeks and have definitely noticed
a difference in the plant growth. I have also noticed that the Co2
production has already slowed down quite a bit from the Nutrafin
container(its not very big).

By the way, can anyone recommend a pressurized Co2 system - brand,
price, dealer?

"Philip Ash" wrote in message

"Phil Williamson" wrote in message
do you find the nutrafin CO2 system works really well?

"dpots" wrote in message
I recently added a DIY Co2 system to my 60g aquarium. I am seeing
streams of very tiny bubbles coming off of the Vals. I have also

larger bubbles appearing on the under side of the leafs of my

nana and barteri. Is this typical of "Pearling"? Can pearling

on the underside of a leaf.

FYI, I am using the diffuser from a Nutrafin Co2 system. It appears
to be working great. A large Co2 bubble enters the bottom of the
diffuser and quickly travels to the top where it has been reduced to
almost nothing.


I know I was not directly asked the question, however I have had some
experience with the Nutrafin system and in the interest of public

sharing, I
thought I might jump in and pass on my opinions.

I have a Nutrafin system on a 75 UK Gal tank. I added it , upgraded the
lighting and added *lots* of plants in an effort to control algae.
I have very recently obtained some PMDD

My plant growth so far has been outstanding (at least for me). I haven't
even started with the PMDD yet ! I have until now used the Kent

Elodea will grow more than 12" in a week. Other plants will add several
inches a week. Crypts several new leaves per fortnight, Echindorus one

two leaves a week.
One Vallis species threw runners out and produced 5 plants within 3

I had never experienced pearling, until I added the CO2 system. I have

fact, purchased a second, which I will be adding to the tank this

They are rated up to about 20-30 gallons.

The diffuser seems to do its job very well indeed. I frequently have 7

or 8
bubbles slowly working their way up the maze simultaneously, whilst

smaller and smaller.
Great fun to watch, very easy to tell when CO2 production is dropping


I paid 15 GBP for my unit, and it was a very good value for money
investment. If I continue to get achieve good results, and beat the

algae, I
will probably invest in a pressurised injection system. A fantastic,

easy introduction to CO2.