Apistonaut
Member
- Messages
- 36
- Location
- Minnesota, US
Thank you for advising both of us. I’ve seen some females give broad vertical stripes on the flank during breeding, but it’s much more helpful knowing it can be problematic or from younger fish.The good thing is, you can't overdose humic substances that easily. Also it takes a day or two to clear up. Catappa is not my first choice, I use beech and oak I collect in the woods. But I don't do this for the colour of the water, as I'm simulating the conditions in a blackish clearwater creek, meaning actuall softwater, not tinted tap.
As your pH is about neutral I don't see any problems there, besides your sense of aesthetics. A. borellii isn't a blackwater species and your tank is only visually that (what we call faux blackwater), so all should be fine.
You can keep the lights of for a day, but honestly: Why would you? That way you can't see the fish well in the most critical phase when especially behavioural changes hint at possible problems.
And a little info on "the cycle". It's less important than you think. It's just the prerequisite for the fish not getting affected by nitrogen compounds. Period. But there are other wasteproducts too. That's why many here are so keen on getting their tanks seasoned. Meaning the whole biology has had the time to develop and to spread it's legs so to speak.
The vertical lines are not a sign of good mood. I'd also assume them to be more visible due to the fish being quite young and the light in the pictures coming more from the back than the top/front. The second set of pictures also point to a young specimen, although how should the blue reflect if not hit by the light in the right angle? I do stick to not fully coloured up, though.
Speaking of blue: Blue usually is not a pigment, but due to the surface structure of the scales. We call that reflector scales sometimes. It's the same with the blue stripe on Paracheirodon (the genus of neon tetras). In heavily tinted water almost all colours get filtered out, including the blues. It's an optical effect, that's all.
Again, this is not actual blackwater. Well, we only have the pH, but as there is no word of using RO or rainwater and no readings for KH/GH, it's safe to assume it can't be true blackwater. And the amounts of visible humic substances are not a problem for any of the fish in this tank, quite the opposite. In any case though: The stuff is good for the fish, especially in this phase of the tanks lifetime I'd leave it in, just do your normal waterchanges. The humic substances are much more useful than anything you could add from a bottle. They help with osmoregulation (reducing the amount of energy needed to keep it going) and have positive effects on the slime coat. Additionally they have antibacterial properties (no worries, the filter is affected positively nontheless), which affect many opportunistic bacteria.
But we also know fish adapt to their environment. In brightly lit environments they look wahed out, in dark environments they try to be as dark as possible. Absolutely normal and cichlids are the real colour acrobats in freshwater, so there is a connection.