1. I use Sera Micron for the first two or three weeks and then onto bbs. You can also use 5-50 Golden Pearls instead of Sera.
2. A 5.5 gallon tank works well. With that size tank you do not need to do any water changes for a few weeks without any problems. A few ramshorn snails will eat any...
You need to put a breeding slate or cone in the tank and remove it once they have deposited their eggs on it. Then you hatch the eggs in a separate tank. The fry can be fed bbs once they are up & swimming around.
Good luck! Mine put their eggs on the glass about 90% of the time, LOL
Iriatherina werneri have tiny mouths and need tiny foods (crushed flaked and bbs) but otherwise have no special needs. Like most other rainbows they can easily adapt to most water parameters so long as they aren't extreme.
Ugh, hopefully not the poor looking one in the photo.
If you are in the market for Pseudomugil's I would suggest the seller below on Aquabid. He currently has 3 types listed and you will get top quality fish from him.
AquaBid.com - Auctions Offered By Seller Roseline17
Flubendazole will kill them quickly. If you happen to have any nerite snails it will kill them as well. Other than that it is safe. Just sprinkle a tiny bit on the surface of the water and it will do it's job.
Levamisole, Flubendazole & other chemicals for the aquarium
Mixing rhinogobius with other rhinogobius or other gobies can be hit or miss. R. rubromaculatus and R. giurinus tend to kill off any other gobies in the tank with them. Some of the other rhinos can be more peaceful but still risky.
No, cories don't care too much about plants. They like to dig around in sand/gravel. So, you could scoop a little bit of your substrate from the tank and put that in the net. Breeder net have a pretty fine mesh so most of it should stay in place.
Also, older cory fry eat the same food as the...