Suggestions for an interesting cull eater?

A betta:) since they stay at the top most of the time. Had a tank of betta girls for my livebearer fry that I didn't need.
 
I have guppies in 6 different tanks LOL ... depending on what I wind up getting, it can have this tank to itself if necessary.

I really like the look of the bright blue crayfish, I wonder if you can keep more than one together? Maybe a breeding pair?

Finjoy, I get what you're saying, but I live outside of city limits and I currently don't have any shipping supplies. I've posted "fish for sale" messages on my local message board, but have gotten no responses. Besides, most people who want guppies want colorful ones, not the vanilla ones.

I have a seperate 29 gallon for growing out the guppy fry. Once they start showing colors, I move them into other tanks with guppies of similar colors/patterns. That's why I need something that will be able to eat a grown guppy, because sometimes you can't really tell whether a guppy will be one you want to breed until it's almost grown.
 
I have guppies in 6 different tanks LOL ... depending on what I wind up getting, it can have this tank to itself if necessary.

I really like the look of the bright blue crayfish, I wonder if you can keep more than one together? Maybe a breeding pair?

Finjoy, I get what you're saying, but I live outside of city limits and I currently don't have any shipping supplies. I've posted "fish for sale" messages on my local message board, but have gotten no responses. Besides, most people who want guppies want colorful ones, not the vanilla ones.
large crayfish have to have 3 different tanks to breed. marbles and dwarf dont.
 
http://www.plantedtank.net/forums/m...ted_Climbing_Perch_Ctenopoma_acutirostre.html

Another vote for these. They're personable, pretty, and their mouths are deceptively large. They also get along pretty well with most things, so you could get an angelfish or gourami at some point of you wanted, too.

They are really interesting fish... does anyone know for sure what the minimum recommended tank size is for the Ctenopoma?

Also can they handle hard water? I just read they require soft acidic water.
 
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LOL oh well, I too have an Oscar to take care of my culls. In all fairness, I had the Oscar long before I had to cull anything.
 
A gourami or betta would work depending on how many fry we're talking about here. I had one large betta spawn where there were too many fry for the father to take care of. So instinctively, the father ate a bunch of the fry to reduce the numbers. Let's just say, the father looked extremely bloated and uncomfortable for the next couple of days. (also, anybody who's bred bettas before know how TINY betta fry are compared to guppy fry)

I think the cichlids already mentioned would work because of their larger size, but they're somewhat common. IMO, a crayfish wouldn't be fast enough to catch newly born guppy fry. They're somewhat clumsy and would have an easier time catching prey that is larger and can clamp their claws on quickly. I hear raphael catfish are good at keeping fry numbers down.
 
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