Casting stat requirements for spell-like ablities

[EvilMinion]

So the following scenario presented itself:

PC casts Bestow Curse on a Shadow Demon successfully, and drops the demons charisma score by 6 permanently (from 19 to 13)

Can it still use all its spell-like abilities that mimic spells of particular levels? Normally, for regular spell casting, you need a primary casting stat equal to 10 + spell level to cast it. The demon's primary casting stat is charisma.

The demon has:
3rd level: deeper darkness, fear
4th level: shadow conjuration
5th level: telekinesis, shadow evocation, magic jar
7th level: greater teleport
and a summon of unknown level

Would the cursed demon be unable to cast any of these?
At the time we ruled it could now only cast its 3rd level spell-likes and its summon, and it ran off to think horrible revenge.

But upon later review, we think we may have been wrong (for instance a dretch can cast its stinking cloud ability (level 3), yet only has an 11 charisma)
Conversely, a gnome pc needs to have a charisma of 11 to be able to use its spell-like abilities.

Thoughts?

[Gauss]

SLA's do not require a minimum ability score. There is nothing in the rules that I can find that states they do.

- Gauss

[Robert A Matthews]

Spell like abilities are not spells so they do not have minimum required casting stat.

[Xaratherus]

Agree with Gauss and Robert A Matthews: While spell-like abilities behave as spells for many purposes, unless a rule specifically states it applies to an SLA, it does not - so no minimum stat requirement for SLAs. An aasimar Cleric with a 4 WIS could still use Daylight as an SLA even if it couldn't use any of its other spells.

[EvilMinion]

And yet a gnome with 10 charisma cannot use their dancing lights spell like...

But ya, the pc race spell-like bundles seem to be the only ones with any sort of stat limit imposed... and those all '11 or higher'.

Guess that demon isn't as hooped as I'd thought. =)

[Quandary]

gnomes need CHA 11 to qualify for a racial SLA including a bunch of cantrips.
sorcerors need only CHA 10 to be able to cast the cantrips, so the gnome CHA qualification is obviously not the same thing.
it is not that they have the SLAs but cannot cast them without sufficient CHA, it is an unrelated mechanic,
more akin to qualifying for power attack with 13 STR.
the point of SLAs is that their /effects/ are spells, and they can be disrupted and ID'd like spells (but counterspelled, explicitly)
but everything leading up to that is not like spells: no spell slots, no spells known, etc.,
and that also includes prerequisites like sufficient stat to cast a spell...
having the SLA (once you do have it) bypasses that because it independently of the spellcasting rules says: you CAN cast the SLA.