breeding fish

How do I get rid of hydra in my fry tank, my current batch of peacock gudgeon seem to be too big for the hydra to catch but I have eggs that should be hatching out today or tomorrow and they will be munched, what do I do

I have a 5,10,20 gallon tank and I want to know what fish could be bred using them that would bring back the most amount of money.

I have a 20 gallon that I would like to house with rams. I'm trying to decide between the 2 types. Im wonder which would be better depending on how hardy they are, and which are bred easier. I have a 10 that can be used as a fry tank if needed.

Hey all, this is my first time posting, and admittedly a relative beginner. I'm just beginning to stock a new planted 110, and moved over two black phantom tetras from an old 29g. I noticed that they're courting a lot in the new tank, which they never really did in the smaller... then...

Ok folks. My Albino corys decided to plaster the sides of the tank with eggs. This just happened within the past 24 hours. The last time this happened I scraped them off of the glass and into an aerated bucket. Unfortunately, the eggs clumped together and ended up a total loss. The first...

Well First the gold ram eggs were all milky colored then half became clear with a black dot/line on them. I'm guessing those are the hatched ones since they appeared after about 2 days. Now the clear and milky ones are all intermingled and there is fungus growing. Its like a white poofy thing...

I finally got my GBRs from oddballfish.com:) They arrived quite shaken up because the bag leaked slightly and there was about 1/4 of a cup. The gels that the bags come with to absorb any leaking of the water was soaked. They arrived around 3:00 today and both already have some nice color though...

So I have this little "for fun" experiment in mind where I want to make some Guppy/Endler hybrids and see what I come up with, mostly I want to see if I can get a clutch of fry that have endler looking males with less dull looking females. But I'm intrigued to see what all I come up with, and...

the title might sound stupid, but I'm just wondering because my guppies is fully bloated with eggs [i think] for 1 week now, maybe more, and I still havent seen any fries anywhere. is it that i put them in a 25cm cube [4gallons] tank so they dont wanna breed or they're just slow 'gestating' or...