That depends on the size of the tank. If you have at least a 20L then Pearls are the way to go. For smaller tanks pigmy like croakers are sparklings are great and you ca have several. You may also consider a group of female bettas of different colors. 3 in a 10 Gal 6-8 in a 20H or 20L.
*Never keep less than 5 females (bettas) together, and make sure that the tank the females is heavily planted. (AKA: you can't see the other side of the tank.) Even then, females are aggressive and prone to problems in a sorority, so be prepared to have backup tanks if it doesn't turn out! * Many betta keepers firmly believe that sorority is for experienced betta keepers only. They are a hit or a miss, they will be fine for many months, years ect... and then one day the tank dynamics change like a snap.
Like above, depending on the size and the current stock of the tank. Pearl gouramis are usually a firm favourite by many, especially in a larger tank. Some of the dwarf gouramis - like the dwarf gourami, sparkling, honey.
Other fish for a large tank could include three spot (and numerous varieties) and pearl gouramis. Most of the time these are mellow, but some have reported that some individuals can be slightly aggressive.
Thx.
I wont be getting betas since females are uncommon where i live and i have not had them very long. i do like the pearl gouramis.
My tank is 40 gallons so would two to three pearl gouramis be ok in that size of tank.
I also recently saw some opaline gouramis, are they peaceful? and if so how many in in the tank? (I only want one species of gourami int he tank)
Pearls are a great choice - I kept them for several years in tanks from 45-125 gallons. Most people have good luck keeping them in groups but sometimes things don't work as they should. They are smaller and much less aggressive than the 3 spot (opaline) gouramis - I would not go that route in a tank of your size, unless you wanted to just get 1 of them. Opaline is just one of several color morphs of the 3 spot gourami.
There are some other less available species that would be a good fit, but none are as nice and as beautiful as pearls in my opinion. I would do a pair in a tank of your size - they would make a very nice centerpiece for your tank.
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