Aquatic Bloodline - Aquatic Telepathy (Su) - Planar Ally

[Affabilitas]

Hi Guys. I Hope I dont ask a question which already has been answered, but i seem to be unable to find it.
Th Aquatic Telepathy Ability of the aquatic bloodline states, that you would be able to "call and request a service from an aquatic, water, or swimming creature as if using demand or greater planar ally" once per day by lvl 15.

The questions are:
1.) Do I actually call the creature as per greater planar ally?
2.) If i call them, do they have to be outsiders with restriction to aquatic or water subtype, or a swimspeed, or can it be any such creature without the need to be an outsider?
3.) Do I have to pay the creature I call? What kind of action would This Calling use? (I'm not sure since it is stated as a (Su) Ability.)

Thanks and sorry for my bad english

[Affabilitas]

Hm... nobody got an idea?

[Balancer]

Wow looks like it's aquaman's ability.

[Ashram]

1. It is what it says. You can apparently send out a call through time and space to get an outsider to be your buddy. Although once there, it would be like planar ally, greater in that you would have to pay them for their service. Using the demand ability would not have the payment requirement, of course.

2. RAI would point to the first option. They would need to be extraplanar outsiders of the aquatic or water subtypes. Unfortunately, there are a LOT of outsiders with swim speeds that aren't necessarily water-based, so GM discretion would be required on which non-elemental outsiders with swim speeds you'd be able to call, depending on your own alignment as well.

3. As stated in #1, yes. There is nothing that says you waive the payment simply because it is a spell-like ability. Using the spell-like ability takes the same amount of time that using the actual spell would, which for planar ally, greater would be a casting time of 10 minutes.