From your description of a splish and spalsh tank I am wondering if your in Australia (its a brand I have commonly seen here), if you are in Australia not many pet shops do carry Endlers but you can find them on a couple of Australian fish forums where people are selling them, that's how I ended up with my Endlers. I do love my Endlers and they can work well with a Siamese fighter.
In your tank another good option would be cherry shrimp, they are pretty, and hardy, at pet shops your generally looking at paying $4-$5 each but online on forums they are often available at 50c- $1 each. Cherry shrimp often will live well with fighters as well, it really depends on the temperment of the fighter.
Another good fish option for your tank if you did get out of having guppies are Killifish, beautiful colourful little fish that are suited to small areas.
This forum is wonderful, everyone is so helpful!
Thank you Baccus. I am indeed in Australia. Just looked up a photo of Killifish, they really are gorgeous. At the moment I am considering all these options. I don't think I'm a shrimp person...they remind me of bugs (sorry shrimp lovers!) and I have a bit of a bug phobia I'll just keep researching for the moment. Feeling a bit guilty about giving away all the guppies since the lady who gave me the tank kept and loved them for a few years...but maybe the guilt will subside in time!
Yeah the mention of Splish and Splash gave it away .
A shame you don't like shrimp, they are great little creatures, some types of snail are nice and Australia does have some really nice native snails but they can be hard to track down. If any snails do interest you I would reccomend checking out Aquagreen they post anywhere in Australia, who knows the shrimp on there might also appeal to you.
Don't feel too bad about the guppies they can become a real pest with the females costantly dropping fry and the males trying to breed with everything remotely fish like. Don't get me wrong I do have a soft spot for Guppies but they aren't the ideal fish for every body.
Another fish that you might find easier to track down (depending which part of Australia your in) would be sparkling Gouramis, a very pretty little fish that wont breed like crazy.