Aha. I still feel bad about not succeeding with Paros on the first attempt – I think I was trying to achieve too many things at once really. The new setups are more focused.
If people are interested in the tank apart from the Paro angle then perhaps they might like to read the journal over on the UKAPS forum, where there is much more detail and will not clutter up PP with non-Paro content 🙂