Recommendations for fish types and numbers for my pond?

[IPA]

Thank you for all your feedback. I have learnt my lesson many years ago about inappropriate setups.. I got my first fancy fantail 20 years ago and had her in a 30l (6 gal) round bowl and quickly learnt that wan't going to work. (Luckily she did go on to live a further 10 years)

Thank you IPA for the advice on ammonium chloride. I can only find Dr Tims in pond size bottles, but this looks like it might be very similar.

Amazon.co.uk

That seems awfully expensive. You can use any pure ammonia or ammonium chloride, I saw other hits for ammonium chloride from the UK site; once I scrolled past the chemical protective suits, haha. Maybe even from a Local pharmacy? The problem we have here is they always add a fragrance or additive. You dose daily to keep ammonia at 3 ppm, monitor until it drops and nitrite rises and then finally both go to 0.

 

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Thanks IPA, With an aquarium once the ammonia and nitrite get to 0 you do a partial water change to remove the nitrate. (usually for my fancies I do a 1/3 water change every 3 weeks ish.

Do you do water changes like this with your ponds, if so what type of frequency?

Apart from an yearly (or twice yearly) clean out and filter clean/media change, previously I havn't done much maintenance on the pond. Any advice on your routines is appreciated so I know what I am getting into before I get any fish.

 

[IPA]

Thanks IPA, With an aquarium once the ammonia and nitrite get to 0 you do a partial water change to remove the nitrate. (usually for my fancies I do a 1/3 water change every 3 weeks ish.

Do you do water changes like this with your ponds, if so what type of frequency?

Apart from an yearly (or twice yearly) clean out and filter clean/media change, previously I havn't done much maintenance on the pond. Any advice on your routines is appreciated so I know what I am getting into before I get any fish.

I don’t do water changes. 400 gallon pond with a bog.