Chempak tomato feed

[pumpypants]

Hi all.
I have been dosing with solufeed 2 1 4 with ok results.

However, I am interested in potentially dosing with chempak tomato feed, please see the included photo

I note on the face of it this seems a lot stronger than the solufeed and comes with an aquatic warning.

Could a member who is a lot more familiar with the npk breakdown and included ingredients comment if this is suitable.

And also if suitable suggest a dosing mix for 500g water - solufeed 214 is around 30g.

 

[Connswater]

Aqua design also have a product for fertilising aquarium products with a warning, dosage they aim for NPK 5.9:0.3:3.9

 

[hypnogogia]

@pumpypants , I don’t know the answer to your question, but I notice that all of the N come from urea and ammonia, which I’d be cautious of.

 

[Connswater]

I am not a chemist or biologist and as far I understand urea is not, in sensible amounts toxic, all fertiliser can cause huge problems if used in large quantities. Nitrate for fertiliser is, my PhD, chemist friend tells me, essentially either derived from animal waste or created using the Nitrogen in the air and Natural gas - the latter itself a product of decomposition of course. I've been looking at NPK across a range of products, where this is made available, hard to find on some products for the hobby, no surprise there. Tropica capsules are NPK 21:7:11 (reversal I think of the ratio many of us want, i.e. 11:7:21 would match my thinking, since Potassium isn't a significant byproduct of fish faecal material) but no indication of where the Nitrate comes from. Somebody here must be up to helping properly resolve this. TNC Complete is a ratio of 1.5:0.5:6, which seems ideal but again no ref. to urea or source of Nitrate.

 

[Connswater]

notice that all of the N come from urea and ammonia

Cheap unbranded aquarium fertiliser tabs on Amazon: NPK: 16:8:12 and 7.8 is Ammonical Nitrogen.