Rana temporaria

[Kroot]

Hello,
Next spring I hope to captive hatch some Rana temporaria, I want to know, have any other people done this and what are the positive/negative of these things

Heater,
External filter
Internal filter
Tadpole tea (almond stuff and other things bought off pollywog)
Individually housing (live food containers with holes to allow water flow)
1 large tank with all the live food containers and 1 water system,
Individual Metamorphosis containers


Thanks,
Bye,
Also as the spawn is all in one ball is it possible to separate out individual eggs or are they all attached to each other ?