Hi all,

Just had a look at your ferts... I may be wrong, but isn't your KNO3 a bit
too much...? According to chuck's calculator that would give you 15.06ppm
of Nitrate, 2.2ppm of P and your K is only 20ppm .. Isn't the correct ratio
K-20ppm N-5ppm and P-0.5 to 1.0ppm?

If you want to put in 15ppm of N then shouldn't your K be 60ppm and your P
1.5-3.0ppm


"Dave@AquaFlora" wrote in message
news:P1nwf.46699$km.24858@edtnps89...
Response below.

"Bill Stock" wrote in message
...

"Marco Schwarz" wrote in message
...
Hi..

Here is my new dosing plan for my 15 gallon wide tank (2.7wpg, 35-42ppm
CO2, fish load: 8 harlequin rasboras, 3 saes, 3 otos, 3 clowns, 2
corys):

35-42 ppm CO2 = 35-42 mg/l is to much.

15-20 ppm CO2 were o.K.

What does anyone think?

I think fish is the decisive factor.

30 ppm seems to be the norm these days, many people run much higher
without any ill effects. I keep mine around 35 ppm, which seems OK. I get
too much growth for my liking actually.

I thought his PO4 and K were rather high though. Not to mention too many
large fish for a 15 gallon.






--
cu
Marco



Yeah, I haven't found any problems like some people warn about fish
gasping at the surface etc....the amount of CO2 doens't limit the amount
of oxygen.

Regarding the fish load, yes, I might be pushing it a bit there. The
clowns and corys are all not much bigger than an inch, SAEs close to
two...and really they say never to count bottom feeders in fish load
calculations. Ottos stay tiny and hidden...and the school of eight
Harlequin Rasboras are a nice complement to the planted aquaria. So
really, since the SAEs act as a more of a middle territory fish---I only
count the 8 Rasboras and 3 SAEs as my fish load.

From my understanding of Tom Barr's discoveries, it's the lack of PO4 in
planted tanks that can cause problems with algae. Also, I've heard the
saying that one can never dose too much K. However, I did do some
corrections to my dosing schedule:

Sunday - 50% Water change - Traces 5ml, 1/4 tsp K2SO4, 1/4 tsp KNO3, 1/32
tsp KH2P04
Monday
Tuesday - Traces 5ml, 1/4 tsp KNO3, 1/32 tsp KH2P04
Wednesday
Thursday
Friday - Traces 5ml, 1/4 tsp KNO3, 1/32 tsp KH2P04
Saturday - 1/8 tsp KH2PO4 evening or morning?? (Load up the plants just
before next day's water change)

Dave Picklyk.