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I purchased the KNO3 from eBay, was quite heavy for an empy bottle!

I dose with an automatic system, works great. Here’s the mix I use: http://ukaps.org/forum/viewtopic.php?f= ... 10#p164347 Get yourself a peristaltic pump too, much more controllable than a submersible: http://www.williamson-shop.co.uk/aquado ... 5551-p.asp

I recently got some from eBay, it has clumped slightly but smells more like plastic than cheese! Here it is on the right, next to some Mono potassium phosphate from the same supplier: Is there any other method of testing? I have a nitrate test kit plus scales that measure to .00g

Just realised the lighting is actually 4x 39w!!

You could make a solution with them and test for nitrates and phosphates?

Thanks Chris, thats helped I think! :lol: I've got 4 x 54w T5 lights over 323 litres so thats about 3wpg? Running Co2 at about 30ppm. Do you leave the solution with Ascorbic acid for any length of time before adding the rest? Thanks

It doesn't calculate for a single solution dosed daily, looks great otherwise.

Ascorbic Acid, Potassium Sorbate and Trace Elements from Aquarium Plantfood UK, the rest from eBay.

Ta da! Clockwise: Potassium nitrate, mono potassium phosphate, Magnesium sulphate, Ascorbic Acid, Potassium Sorbate, Trace Elements.

Thanks Chris, very helpful. I've ordered 1kg of each, except the trace (250g) and preservatives (50g each). Should last a while! I'll let you know how it goes once I start mixing\dosing! Thanks Alan

That's great Chris, makes much more sense now! That was meant to read monthly rather than weekly! Here’s the thread I mentioned: http://ukaps.org/forum/viewtopic.php?f=20&t=5024 As you can see I've just scaled up from LD's values. NEW shopping list is: Potassium nitrate mono potassium...

Hi All, I'm starting to plan my dosing regime in preparation for my new setup. Could you check my chemicals and measurements are ok below? My tank volume is 323 litres, and hi-tech (4x T5 (54w) with Co2 (via an AM1000)) Dosing will be automated from a single solution via a Williamson dosing...