I wouldn't do it every week. Too many tanks. It would take too long. But every now and then, I can see myself doing it. I already do it every now and then. I'm very much in favor of large water changes. I always love how the tank looks with fresh water, and I can't help but believe it's good for the fauna and flora in the tank.
I think you'd really enjoy watching a breeding pair of Pelvicachromis taenitus. They are very interesting fish. They don't just swim around the tank all day long. They have very specific behaviors, and they are most especially enjoyable when they pair up.
I started keeping aquariums when I was a kid. Back then, the traditional Kribensis (Pelvicachromis pulcher) was highly popular so in the mix of all the fish I got, I ended up getting some of them. Eventually, two paired off and started breeding. I remember watching them in the tank at night. They just fascinated me with how they raised their young. Unlike most fish, they raised them together, taking turns at watching over them and escorting them around the tank. I used to laugh that they would take them around the tank, telling them, "Now this is this plant (plastic back then), and this is this cave, and watch out for that fish, he's mean, and so on and so on." For all I know, maybe they really do teach their young. They definitely tell the young when it's safe to swim around and when they need to lie very still on the substrate to hide. They'll even "call" the fry to hide at times. So between their incredible breeding colors, their mating rituals, the way they care for the eggs, and then how they work together to care for the free swimming fry, they are simply fascinating fish all the way around. I have never seen any other fish bond together and then care for their young they way Pelvicachromis do. I think you'd really enjoy them if you ever had the opportunity to have a compatible pair.
Vicki —Rena Filstar pimp #142 (four XP4s/three XP2s/one XP1) • Eheim pimp #301 (Pro II 2128) • Victor pimp #27 (VTS-253B-320)
• 90g - Journal
Pelvicachromis taeniatus 'Moliwe' ——
• 75g - Journal
Pelvicachromis pulcher 'Lagos Red' Better Pics 8-24
• 29g - Journal
Pelvicachromis pulcher 'unknown' —--
• 29g - Pelvicachromis taeniatus 'Moliwe'
• 5g - RCS colony ——————————————————
• 2.5g - Journal