Hi, How you going?
I'm from Australia and I just wanted to run some ideas by you. I've had a bit of experience in the fish world.
I currently have one tank of breeding guppies and another tank with marine clownfish. I have also had tropical seahorses in the past.
I have just bought a 90gallon (340l) tank (4foot (long) x 2foot (tall) x 18inch (deep)). It has an under gravel filter, a canister filter, 2 heaters and 2 lights. I'm thinking of decorating it with gravel, driftwood, rock and live plants.
I’m not afraid of hard work and I always ensure my tanks are in optimal condition.
I'm trying to make a plan of what I’m going to stock it with so I can slowly build up to the final number. The main thing I want is colour, colour, and colour (and personality)
This is what I’m thinking so far:

• 3 x Dwarf Gouramis (1 male and 2 females, or 3 males?)
• Pair Angelfish
• Pair Kribensis Cichlids
• 1 Shark(Maybe Black Redtail, is there another that would be better?)
• 12 Cherry Barbs (are these two small? Will they get eaten? Is there a better suited schooling fish)
• Another school of some type (maybe hatchets, can you suggest another schooling fish?)
• 6-8 x Rainbow fish (Not sure which type, does gender matter?)
• 3 Yoyo loaches
• 2 Bristlenosed cat fish (to eat algae)

Can you please advise me as to whether this is a good combo? Are there any compatibility issues? Are there too many fish? Any similar but more colourful suggestions?
I would really appreciate any feedback you could give me. You may save many fishy lives.

Thanks for your time,
Deb