I just wanted to share something new about my long tank...
Just did a major overhaul, as the maintenance wasn't working for my set up.
I ended up taking out the baskets, as they were big (ur right mr.v) I took 8, 1.5ltr water bottles i had been saving and cut them in half and then cut a hole in each one, then cut a vent hole in each bottle to let water pass through.
To prevent the betta from leaving I wrapped a mesh around the bottle to cover the hole. This way for clanin I can take the bottle out, and water drains out 90%, with the mesh holding the betta in, and small amount of water still in the bottle.
I that way you can place the bottle in a holding jar, slide the mesh up so betta can leave then clean the bottle quic and easy then replace. I will post some pics in a bit.
Took a while to make, but it was cheap and used stuff aorund the condo.. Then the male or femals can still swim around the bottles..and air and warm water can get in through the screen.
I think this should work a little better than the baskets...