This is my first time ever keeping Tanganyikan fish, so it is a completely new experience for me coming first from community tanks as a kid, then growing into the South American side of the hobby before dabbling in reef tanks then back to SA cichlids. I'm most glad for the few years I spent reefing as to me, that was really what prepared me most for this new aspect of the hobby. If I didn't already learn to maintain much more stringent water parameters in reefing, and if I didn't already familiarize myself with the array of equipment used by reefers to automate alot of tasks (which seem absent in the freshwater hobby for some reason), I don't think I would be having as smooth a journey as I have been so far. Not to mention of course all the valuable advice you guys have given me over the past weeks!
Without much further ado, here's some of my thoughts and observations about the fish I've been keeping. I hope that it can provide some anecdotal help to other newcomers to the hobby in future, as well as elicit more comments and advice from all you experienced hobbyists too!
Cyprichromis leptosoma jumbo tricolor Mpimbwe
One of the "dither" fish in this tank. This species has really developed into the most colourful fish in my tank. The gentle lavender bodies contrast well with dark black dorsal fins and bright yellow heads. I really would strongly recommend them for a bright splash of colour in large tanks. I have read reports of them being highly aggressive but i haven't observed this yet personally. My only gripe is that they don't perform the role of "dither" as well as typical characins do - they loosely shoal but tend to congregate on one side of the tank, not really filling in the spaces to make the upper reaches of the tank look full and alive. Maybe having more will help. I see people having 20 Cyprichromis in 120 gallon tanks so my 600 gallon likely requires many many more especially since I have so much vertical space to fill with 4ft of water height.
Cyprichromis microlepidotus Bulu Point
When I ordered this fish as a second "dither" species, I expected something more colourful than the tricolors due to pictures and videos found online. These fish unfortunately still have a dull base colour rather than the rusty brown/orange I was expecting. However from day 1, they have sported a brilliant blue iridescence on their heads and dorsal fins, so they are still beautiful in their own way. I hope that given more time they will get the nice rusty base colour as well. Same issues on suitability as "dither" fish as the tricolors so I may ge adding mire too.
Enantiopus melanogenys Kilesa
The current stars if the tank. The featherfins were meant to take centrestage as the feature fish of this tank, but at the moment it is the Enantiopus melanogenys Kilesa that have coloured up so magnificently. The 5 males I ordered have spread out through the bottom of the tank and each claimed a small territory for himself. I'm starting to see the small pits of sand I read about in some of the territories so it's really quite cool. I see chasing occur but nothing too violent. Interestingly enough, they leave the Xenotilapia nigrolabiata Red Princess alone and even left a corner of the tank free for them to hang out. How considerate.
Cyathopharynx furcifer Resha
They arrived as pure silver, colourless fish. Thankfully, they are starting to show abit more colour. I read that males would start to colour up by showing black/blue and yellow in their dorsal and anal fins, and that's what's happening now. Some females also show a white streak in their dorsal. What's interesting to note is that the females are looking longer and slimmer, while the males are shorter and broader/fatter, making the males look smaller or younger than the females. Is this normal? Another troubling thing is that I ordered 3 males and 6 females, but it looks like I got a 4:5 ratio instead. Should I order more females? Nothing much else to say about them except that I really hope they grow into being the feature fish that they're supposed to be!
Altolamprologus compressiceps Mandarin
Not much to say about them except that at the moment they aren't living up to the Mandarin tag. They are a very pale yellow and not orange in the slightest. Perhaps I should have gone with black Calvus instead? Not very interesting behavior either so far, just some conspecific chasing around.
Paracyprichromis nigripinnis Blue Neon
I bought these fish with zero expectations as I know they are shy and delicate. It's just that with 3 sides of 3d background and 4ft height, it seems such a waste not to keep some vertical rock wall dwellers. So far they've been interesting, though not coloring up much. 2 are remaining very dark while the rest are a dull grayish colour. No neon blue to be seen. They do perch on the rock walls though so it's cool to see them in their niche. Sometimes they even treat the front tank glass as a wall and perch there for me to see their underbelly. Quite cute really.
Xenotilapia nigrolabiata Red Princess
Finally, the supposed holy grail fish that I have been fortunate to have access to. I have heard many horror stories on how delicate they are so I frankly expected them to not survive beyond a few days. I was even planning to replace them with Xenotilapia flavipinnis Kekese for the red colouration once they passed on. Surprisingly, they have defied all odds and all 5 are still alive and finding their place in the tank. I was initially quite disappointed in their colour as I thought they maxed out at a small size and so should have full colour already. Thankfully I did some research and found that they actually grow larger than I thought and mine look exactly like the smaller one at the bottom left of this picture (covered by the watermark):
https://aquainfo.org/wp-content/uploads/2017/06/Xenotilapia-nigrolabiata-Red-Princess.jpg. Mine are about 2 inches now. I hope that they will eventually develop the vivid red that they are known for.