Thank you all so much, you've helped a great deal
My tank dimensions are 66cm x 38cm x 49cm (26in x 15in x 19in) so it's on the tallish side, but not classified as a "tall" tank.. Here anyway.. lol I've updated my aquarium too, with parameters and maintenance.
I've had a fan blowing over the tank today (Thanks for the tip CelsB!) to see how fast the temp comes down and it's taken about 4.5 hours to bring it down from 30*C to 26*C.. That's not a too quick time frame when I have fish in there is it? Thankfully it's not as hot here today, only 32*C (got to 45*C yesterday!! :-O ) so that's probably helped the temp come down too..
Cycling is going really well, I'm not sure if anyone has had experience with Lysofoss, but so far so good
As for species, I agree that tiger barbs probably won't be the best choice.. I really do want a few different species in there and think my tank might be too small for them to co-exist peacefully.. lol
I'm taking everything you've all said into consideration and well keep you posted!
Thanks again all!