Fishy Cycling my 75 gallon

Since goldies are cold water fish, are you planning on keeping a cold water tank? If so, you may want to post in the cold water forum.

Please read this article about cycling
http://aquariumboard.com/forums/articles/26-cycling-tank-fw.html

If you do a fishy cycle, you will need to test EVERY DAY, and change as much water as necessary to keep ammonia and nitrites below .25
 
Someone correct me if I'm wrong but you probably shouldn't use goldfish, they might not be hardy enough to survive cycling.
 
karna68 said:
Someone correct me if I'm wrong but you probably shouldn't use goldfish, they might not be hardy enough to survive cycling.

These fish are often kept in unfiltered bowls - them being part of a fishy cycle in a 75 should be breeze for them, almost paradise compared to thier usual treatment.
 
I am also considering doing a fishy cycle (not with goldfish). I was thinking about using glofish but, I don't know how many to put in a 75 gallon without is causing a huge spike in things.
 
what fish would be best for cycling as i am gonna be putting a wild oscar in my tank
 
Last edited:
I was doing some reading on fishless cycling and the only thing that bothers me is the use of amonia in the water BUT Im gonna do some more reading to try and convince myself to try fishless cycling because from what I read fishless seems to be the easiet and most precise way of cycling.
 
I did fishy cycles in 2 tanks and out of about 10 fish only 2 survived :sad: I'll definitely be doing fishless from now on.
 
if you start with two fish, it takes longer for the ammonia to get to dangerous levels, especially in that size of tank, and the fish get almosed used to it. (that how i cyled my 20 gallon before i knew about fishless cycleing) if you absolutley need to, you can start with two really hardy fish like dainos, and with that little of a bioload it might even be like a mini cycle because the bacteria have a lot of time to catch up before the ammoina gets to high. then every week you can add 1 or 2 more fish, but you have to test your water every day (you should do that anyway) to make sure it doesnt suddenly spike to 8 or some outrageous number like that.

and about the oscar... if you want him by himself, a 75 would be ok but not perfect. you might want to consider some other cichlid that takes up less room, like severum or fire mouths, and then you can have a bit more fish
 
jm1212 said:
if you start with two fish, it takes longer for the ammonia to get to dangerous levels, especially in that size of tank, and the fish get almosed used to it. (that how i cyled my 20 gallon before i knew about fishless cycleing) if you absolutley need to, you can start with two really hardy fish like dainos, and with that little of a bioload it might even be like a mini cycle because the bacteria have a lot of time to catch up before the ammoina gets to high. then every week you can add 1 or 2 more fish, but you have to test your water every day (you should do that anyway) to make sure it doesnt suddenly spike to 8 or some outrageous number like that.

and about the oscar... if you want him by himself, a 75 would be ok but not perfect. you might want to consider some other cichlid that takes up less room, like severum or fire mouths, and then you can have a bit more fish
How about green terrors
 
AquariaCentral.com