To make sure that they get along, use skinks of a similar size and species. Enclosures can have several females, but males will tend to compete with one another. As a result it's best to give new skinks a trial run to see if they get along with the other skinks before moving them in permanently.
The difference is that a skylight filter is a basic colour correction filter with a slight magenta tint which has a similar effect on skies as a UV filter (which cuts out part of the spectrum), which is neutral coloured.
If the skylight is flat glass, use a squeegee on the end of a broom stick or extension pole. See the Window section for specific instructions. For âbubbleâ style lights, use a regular glass cleaner. If the skylight can not be reached by hand, try spraying some window cleaner on a clean rag draped over a broom. Replace that rag with a fresh, dry rag, to wipe off any residue and prevent streaks.