Well, if you don't know just ask, right? The algae and the tank seems to be under control so far, but I'm started to get tired of constantly testing and wanting to try the estimative thing. I started with WolfenxXx's (Craig?) form (great post!) and tweaked it a bit. One thing I'm having trouble understanding is the GREAT variation of Potassium dosing habits I've found. KNO3 (Nitrate source) and KH2PO4 (Phosphate source) seem to be pretty consistent.
This is a 55 gallon tank with a 3-4" deep kitty litter substrate (I want to break the tank down and replace the substrate with eco-complete this summer,) 4x55 AHS lighting (4wpg) and pressurized CO2 with an automatic controller set to 6.7.
KH out of the tap is 1-2, I try to keep it at 4-5 with the addition of baking soda. Right at the moment it's 4.5. GH was 6 a couple of days ago, water authority report says Ca (calcium) ranges 12.4-17.5 and Mg (magnesium) 3.29-5.00 (mg/l). 0 iron.
So here's the plan:
Sunday: 50% water change- add 1 tsp baking soda; 2 tsp Mg (epsom salts, may not be necessary); 1/2 tsp KNO3; 1/2 tsp K2SO4; 3 ml KH2P04 (3.5 teaspoons in 250 ml water solution)
Tuesday/Thursday: Same except no soda or Mg.
Monday/Wednesday/Friday: add 10 ml Trace (1 Tablespoon in 250 ml water); 3 ml Flourish Fe (plan to get some chelated iron from Greg Watson)
Skip Saturday, Sunday start over.
Here's the tank at the moment so as to give you an idea of how heavily planted it is. No comments on the aquascaping, as there isn't any
; at the time I was more concerned with trying to get the plants out of the bucket in which they'd spent the prior month. Wasn't a whole lot left, I had to work with what I had (forget buying plants locally, can't be done,) and did not at the time have the funds to order anything. I also apologize for the lack of quality of the photo, my poor little Fujifilm MX-1200 digital is almost 6 years old. I think digicams are a bit better now ... something else to upgrade.
Well, how's it sound? Is it a plan or still need some tweaking?