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aeternum23 12-09-2003 08:00 PM

Sweetness. So I just got my ferts from Greg Watson, awesome guy to deal with BTW. The ferts I got were Potassium Sulfate, Potassium Phosphate, Potassium Nitrate, and the Platex micro ferts.

I was just wondering, but how do you all store your ferts? I'm not sure which route to take, as I've heard that if you store the fert solution for too long, it will go bad. I've also heard that you shouldn't store them in "open cell" plastic bottles, i.e. soda pop bottles, as bacteria will grow inside the spaces between the plastic. Is this all bull poop? Or should I really go for some medical grade glass jars?

Wasserpest 12-09-2003 08:36 PM

I just use regular glass jars like used for jam and jellies. I think it is sound advice to not let solutions get too old... I saw some fungus growth in a KNO3 solution before.

aeternum23 12-09-2003 09:39 PM

Glass jars it is. BTW, how do you usually dose? I'm looking for stores out there that sell those mini pipets found in the "Fluorish" bottles, but haven't had any luck so far.

digger 12-09-2003 09:44 PM

Chemestry/laboratory supply stores. Look in communities that have large Universities. In Saint Paul we have

I think you can order via the web from them.

Wasserpest 12-09-2003 10:54 PM


Originally Posted by aeternum23
BTW, how do you usually dose?

I have a stock solution for KNO3, and use a 5ml pipet that came with some medication... 13 ml raise the NO3 in my tank by about 5 ppm.

K2SO4 I dose dry, there are those little plastic cups that come with nyquil etc that tell you how much a tsp is.

For anything else like Flourish I use the little 1 ml pipets that come with it...

aeternum23 12-09-2003 11:09 PM

Hmmm, I think I'm gonna try asking the pharmacy at Long's and see if they have anything like that 5 ml pipette. Also, why do you dose K2SO4 dry?

Wasserpest 12-09-2003 11:13 PM

K2SO4 isn't very soluble in water, so it is impossible to make a highly concentrated stock solution like with KNO3. Also, I dose relatively large amounts, like a teaspoon at a time, so it is fairly easy to measure, compared to say PO4 where you need only a tiny amount.

aeternum23 12-09-2003 11:39 PM

Ah, I see. In any case, I'll have to wait for my test kits to come in first. I know my NO3 is at 0, but as for P and K, I have no idea where they're at. I'm assuming 0, but I've heard that even a small overdose of P will flood the tank with algae :P .

Wasserpest 12-09-2003 11:48 PM

There aren't any useful test kits for K, so you just dose according to Chucks calculator, for example I am adding 1 tsp weekly, and just cut that down to half dosage just to see what will happen :twisted:

Rex Grigg 12-10-2003 01:05 AM

I dose KNO3 and K2SO4 dry. I dose KH2PO4 and Plantex as a solution. I keep the dry stuff in Rubbermaid containers and the solutions in 500 ml medicine bottles I got from a Pharmacy. I also keep the solutions in the refrigerator.

Ace 12-10-2003 06:02 AM

Use anything as long it can be sealed. Try not to keep it too long or it will be as bad as rotting food. :)

aeternum23 12-10-2003 06:05 AM

Gotcha. A couple of my friends are gonna try to sneak me some of their lab-grade bottles and pipettes :)

malkore 12-10-2003 04:30 PM

you should be able to get an eye dropper at the local pharmacy

George Willms 01-12-2004 07:59 PM

Can somebody give me the link to greg watson's website? I did a search but still can't seem to find it.

Wasserpest 01-12-2004 08:20 PM

Very difficult to find :wink:

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