Powder fertz non sodium

[john arnold]

Hi
Used to use Aquarium plant food suppliers, they have gone so went to Aqua Plants Care now, i have fonally run lit of my chelated mix and found that Aqua Plants Care are charging a crazy amount of money for the chelated mix, i mean ridiculous, the rest of the products are good price just the chelated, i just like to have it ready mixed, simple, so insaw thread about solufeed sodium free tec which is £22 a kg, yes i want it, may last a few years, just wondering if the copper contebt is fine for shrimp

Element	Soluble in water (%)	Chelated by EDTA (% min)
Boron	(as polyborate)	0.92	N/a
Copper	(as CuNH4EDTA)	0.23	0.23
Iron	(as FeKEDTA)	8.27	8.27
Manganese	(as Mn2KEDTA)	2.00	2.00
Molybdemum	(as molybdate)	0.15	N/a
Zinc	(as Zn2KEDTA)	1.16	1.16

Nothing too technical please i am a simple man with this ha

 

[Simon Cole]

It would depend upon how much you dilute it. I am using the Solufeed Na-free TEC, I put the results into the <IFC Calculator> and compared that against my old <toxicity notes>. It came out at 0.002 ppm which seemed unlikely to effect even sensitive "model" organisms like Gammarus - so shrimp should be fine. Now sometimes a few other factors can come into play - I have done some work on private water supplies that I seem to remember a couple had very elevated copper levels, but in Somerset your tapwater should be reasonably okay. Also, the assumption is that you would do weekly 50% water changes and that you are not introducing additional copper, although it is simple enough to take this into account when you dose. So go ahead and order!

 

[john arnold]

It would depend upon how much you dilute it. I am using the Solufeed Na-free TEC, I put the results into the <IFC Calculator> and compared that against my old <toxicity notes>. It came out at 0.002 ppm which seemed unlikely to effect even sensitive "model" organisms like Gammarus - so shrimp should be fine. Now sometimes a few other factors can come into play - I have done some work on private water supplies that I seem to remember a couple had very elevated copper levels, but in Somerset your tapwater should be reasonably okay. Also, the assumption is that you would do weekly 50% water changes and that you are not introducing additional copper, although it is simple enough to take this into account when you dose. So go ahead and order!

Hi yes weekly water change, ok great thank you very much, love this forum