300G? Hmm...I'd have different plans for it. *cough*Pacu or 2-3 Oscars*cough*
Beautiful set up's! Where'd you buy your plants?
I used to have around 400 gallons of aquariums not long ago. I've had Guppies, Platys, Pluppies (Guppy/Platy Hybrids. Born in my tanks, I didn't buy them.) 2 little random fish which I can't remember what I discovered them to be but they were "rescues" from Petsmart. They were Knifefish food that got lucky and were sitting in an empty tank and I asked if I could buy them for the feeder price and they said I could have them free.
Goldfish, Plecos, Cherry Barbs, Neon Tetras, Black Shirt Tetras, Glass Fish, an Oscar, Cory Cat, Bettas, Zebra Danios, Chinese Algae Eaters (Who vanished o_o), Dojo Loaches, Kenyi Cichlids, Green Spotted Puffers, Maroon Clownfish and Damsels. I also had 2 African Dwarf Frogs, Cherry/Ghost Shrimp and a little Cleaner Shrimp (Saltwater) who lasted about 2 seconds before he died.
Oh and lots and lots of snails!
My brother killed off all but my Goldfish, 2 Platys and one of my Plecos when he left the garage door cracked one night during the winter. It got so cold that not even a heater could have saved them.
I had 2 Bettas, 2 Black Skirts, 2 Glass Fish and a Guppy inside the house at the time and they made it of course as well. They all died eventually though. I still have one of my Bettas. The other died 4 days ago and I got 2 new ones, both who've I previousally owned, then my ex owned them and then he moved back to CA and I had to take them back. So those 3 are my last fishes.
I'm hoping to set up a little 10 gallon with a few Guppies and maybe some Cherry Barbs but otherwise I've already started selling off my old tanks and still am working on getting the rest sold.
The Goldfish and my last Pleco I rehomed to a man with a 1000G pond and 150G tank a few weeks back. I just didn't have the time for a 90G tank and I had 7 always pooping Goldfish in it which made it even more to care for.
In a few years I'd like to build a custom made 300 or 500 gallon for either a Pacu or some new Oscars.