Tropical Fish Keeping - Aquarium fish care and resources

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fishkid 03-03-2009 03:43 PM

Corydoras unable to eat
Right now, I have1 marbled hatchetfish, 1 corydoras ambiacus, 1 corydoras elegans, and 4 caridina multidenta(japonica). My problem is that my corydoras are unable to find the pellets I put in for them. It used to be that the mid-water swimmers would start attacking the pellets, notifying the cories that they were there. However, a strange virus killed them off. Now, the cories swim right past the pellets. When they just come close to eating one, one of my shrimp steals it.The belly of the ambiacus is starting to look sunken. How can I make sure my cories get food?

There is 0 ammonia and nitrite and nitrate is 16. Ph is 7.4. The temperature is 77 and the tank has been set up for 5 years. The substrate is gravel, but I might add sand to a portion of the tank.

iamntbatman 03-03-2009 03:49 PM

You could just drop a couple more pellets in there. They really don't start to cause water quality issues until they've been in the tank for a few hours, so with all of those scavengers in there the pellets should get eaten in fairly short order.

flight50 03-11-2009 06:49 PM

well for starters, how big is your tank. Secondly, you only have 2 cories. and different types at that. cories do best in groups of at least 5 or more. same type preferably. the are very social. what type of pellets are you putting in. try putting in disk, as in disk for bottom feeders. sounds like your putting in shrimp pellets in which they don't really touch.

Byron 03-22-2009 11:17 AM

How are your corys doing now?

Your comment about a virus killing off the tetras caught my attention; if this is/was the 46g tank described in your profile, your high pH may have had something to do with the losses. Cardinals do not like a pH above neutral (7.0), and personally i would never keep black neons that high either. Something like this can weaken a fish and allow parasites and viruses to take hold which would not occur if the water parameters were closer to what the fish need biologically. You also had 1 aspidoras; these fish, like corys, must be kept in schools to be healthy, at least 3 and more if you have the space.

fishkid 03-22-2009 08:03 PM

Still alive. I now think the aspidoras is either a C. nanus or elegans. And many of the fish stores in my area sell them. Telling from the condition at the store, they are probably captive bred. Whenever I can find some, I will get more cories.

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