There is no equivalent of the 10 spp rule here in the UK, as just one non-domestic spp/individual requires a full Zoo Licence which Trentham Monkey Forest needs. The budgies are an interesting anomaly as the spp is 'normally domesticated', but the individuals could actually be wild ones...? The school would not need a licence for its fish tank as the public would not have access, unless is was a school zoo like at least one in the UK. But, if that fish tank were in a public park, or farm park, for example then a licence would be needed as soon as one non-domestic animal is kept. An exemption from inspection by the full inspection team can be applied for, and if granted is done on a case by case basis, with no precedent set by previous cases. I guess a 'Trentham Monkey Forest' could exist in NL, it would just need to build a small aviary or add a fish tank in its reception, to add another 9 non-domestic spp..?