Wow! such beautiful tank! I'm jealous! I'm sure all your new fishes will be very happy living in there! So many hiding places, so much room to swim! How many do you plan on having in that tank? How many can you have?
Total number of fish will vary as we will be having baby Guppys in there at various stages of development. so sometimes there will be more fish than others.
Well, we haven't really eliminated water changes. More like changed the way we do them. Lot less hassle.
What we have done is set up a large (20 Gallon) water tub upstairs with airline coming from it down through the floor and in to the back of the tank.
We have also set up an airline going out the other end of the tank that runs around the room and out the frame at the bottom of the window in to the yard.
Every day we change about 7% of the tank water by using these airlines to siphon the water out of the tank in to the back yard and from the water storage tub upstairs in to the tank. The airlines are clamped and we just turn them on when we want to do the water change.
Lot easier just turning on two clamps once a day than doing a water change the old way.
Plus the smaller regular water changes are better for the fish and plants. B)