Some updated pics.
The tank is doing very well. There is a lot of algal growth as I have been feeding heavily to let the algae get ahead a bit. Keeping the Sicyopterus and acrossocheilus off it is hard work. But feeding fresh algae rocks from the stream outside is helping seed the tank again.
A freshly placed wild algae rock (white rock). The sicyopterus was so busy chasing away fish it hardly had any. The male rhinogobius, bottom right, was keeping a beady eye on a rival male just out of the shot. I am alsways surprised how much algae the rhinogobius consume when I add wild rocks.
I love the mature layout but am thinking of changing it up a bit. Or redoing it.
These two males hang out like this watching each other. Nothing ever more than a quick chase.
The acrossocheilus devouring the filament algae.
FTS showing the pothos roots that act as riparian cover. There is not much space left in the tank.
Some more pics. This tank is so hard to photograph as the fish barely stop moving.
The younger female rhinogobius like to hang out on the top of the branch. Also gives them quick access to the food dropped in.
The sicyopterus only seem to eat algae on this part of the branch leaving the lowest and highest ends.
The former big boy now no longer looks out of place in the tank as the rest catch up in size.
You can see the protrusions on the heads of these fish as they enter breeding times. The zacco looked like a dragon head not long ago with all the points he grew. He does not take crap from the big horse mouth anymore.
In all his glory.
Even though they are not the same species the fish do act as one shoal.
Managed to snap a half clear pic of the acrossocheilus. This is the smallest one.