

What are the care differences between imitatiors and peas?
As title says, I see people asking all the time about identification, but are there any real differences between the two aside from being unable to breed?
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There isn't a lot of info online about imitators, and I'm more just curious as to if there would be any territory issues or anything if that nature
Mom said it's my turn to ask gender!
Aquired this single pea from someone who said it was too aggressive to be kept with other pea's, and they said it's about 4 months old. I think female due to belly shape, gf says male just by comparing pictures.
A separate question, if it's truly too aggressive to keep kept in a shoal of 11 others in a 55 gal, is it ethical to keep alone? I have a 20 long I was planning on getting 6 for (heavily planted), but if it doesn't do well with others, is it wrong to keep it in a 10 gallon solo?
White/Grey spot on sparkling gourami?
Noticed this spot on my female sparkling gourami's head, wasn't there yesterday, she's in a tank with pygmy corydoras and chili rasboras, so nothing aggressive. Tank is well cycled. Never had any disease in this tank, and I've been extremely careful to prevent cross contamination from any of my tanks. I've had her for ~4 months now.