Originally Posted by JadaNae27
Would the mosquito rasbora be a good choice to go with two Gouramis and a small group of Corys? I couldn't find anything in the profiles on its activity level.
I wouldn't. Boraras maculatus, and any of the other five very similar species in this genus, are very tiny fish. Tankmates must be small and unlikely to eat them And as it notes in the profile, larger fish may likely intimidate them and this can cause stress, refusal to eat, etc.. This rasbora works well with the sparkling gourami, licorice gourami, eyespot gourami...in fact, I have had all of these together. But in spite of its common name, the dwarf gourami is not a small fish, with males attaining 3 inches possible. And the medium to larger gourami species will all eat or attempt to eat smaller fish.
The Trigonostigma species really are ideal with these medium gourami, such as the dwarf, honey, chocolate, pearl, and even blue.
I have a group of 10 B. maculatus now in my 33g with a group of Nannostomus mortenthaleri, Paracheirodon simulans, and the dwarf loach and banded dwarf loach. Well over a year now, which really pleases me for the Boraras as they are extremely delicate fish and not always easy to maintain. I only put them in this tank when I acquired them because I had the Boraras brigittae in another tank and didn't want to combine them for the reason mentioned in the profile. I wasn't expecting trouble, but the pencilfish was something of an unknown as this is the first time I've had them but the two groups are frequently together as when feeding, and seem to regard each other as family.