White-cheek Goby

[mikev]

Thanks, CFC,

OK, the current situation: about a week ago I moved the filter to another tank (empty 2.5g), airstone only.
There were two hatches today, seems like two more eggs (spawn of only 4?). About 15 days incubation.
Fry is indeed small (about 2/3 of a newborn endler) and seems underdeveloped.
I'm adding fresh hatched BS (have this going for the last week...preparing), they seem to be reacting to it (cannot see if they actually eat, but they make jerking motions toward it).

Do I need Infusoria? If I do, this would be a problem: I don't have any!

I got them rotifiers (lfs has them), and I can get them green water also (it *may* have some infusoria in it...)

 

[mikev]

OK, looks like 4 hatches and one egg left (difficult to see inside the filter).

I actually saw one hatching: for a couple of seconds, incredible burst of energy, propelling it across the tank...then, just like the rest, it lies down and is mostly motionless, lying on the ground, mostly on its side (belly too large?), and difficult to see even in this bare-bottom tank.

 

[CFC]

The fresh hatched brine shrimp will keep them alive but if you want to add some insofuria (which will certainly quicken their growth) all you need it to put a lettuce or cabbage leaf in a jar of water and leave it on a windowsill that gets some sunlight until you see a milky substance forming on the leaf, then just add some of the water from the jar to the tank at each feeding. Green water is pretty much the same thing i believe but i found keeping a few jars going was pretty easy and stress free.

Their spawns are generally quite small with 6 to 8 large eggs laid so a hatch rate of 4 per spawn is pretty good, they certainly are not a species you'll ever get rich from breeding them

 

[mikev]

Thanks LL,

I'll start infusoria, don't know how much good it will do by the time it grows (6 days?). i'll get them green water later today. (a bit of a dilemma -- both rotifiers and green water are saltwater so I'm afraid to add too much. I know that the adults are very salt-tolerant, but who knows about the fry?).

I saw a couple of them actually swimming today . Swimming up, in a very goby-like jerky motion, once I've added BS.

As for making $: no hope, I already spent more on the fry than I paid for their parents (tank, pump, brine hatching device,...).

One more question if I may: what is the water change regime? (I'm checking for ammonia, so far did not see any).