Setup For A Friend

those get to 3 inches if I remember correctly. hmm. have you taken a look at the convertor's and calculators link in the pinned topics. Try the third link down maybe that will help you. It doesn't account for overfiltration though. i'm sorry I'm just not experienced enough to give you any concrete answer. My opinion however is that you will still be overstocked and you should consider getting rid of the cories instead that may bring you close to properly stocked. You've got the shrimp cleaning up the bottom any way.
 
This is where I get confused. Like, I thought overcrowding was too many fish in like one strata/area of the tank. So I can't see the cories contributing to overcrowding that much if they're on the bottom and not affecting any other area of the tank. IDK, maybe I'm wrong though?
 
Hi love_fish :)

Overcrowding (overstocking) can mean either of those two things, but it usually refers to having more fish in a tank than can be supported by the beneficial bacteria with weekly water changes.

What happens if you have enough filtration to keep the fish is that the end product of the waste conversion will be nitrate. This is harmless in small amounts, but harmful if there is too much. This can be controlled, to a certain extent, by extra water changes.

Corys contribute no more to the bio load than any other fish of their size that eat the same amount of food.

IMHO, if you have 33" of fish, calculated by using their adult measurement, in a 29 gallon tank, you will have no problem at all unless you have high nitrates naturally in your tap water. If this is the case, you will have a hard time keeping the nitrates at a reasonable level and you might even want to understock to keep things manageable.

As for having too many fish on one level of the tank, it usually means that it will just appear out of balance, but, depending on the kind of fish you keep, it could also result in aggression or other stress on the fish. This is never good.

The inch per gallon rule is just a guideline. Depending on your experience and the amount of time you have to spend working on your tank, you can usually keep more fish than that.
 
^^Hey, thanks Inchworm. Since the tank willl be heavily planted, those will gobble up most nitrates, and the rest will be done thourhg water changes. Theres no nitrate int he tap water, and since the fish hes chosen have such a low bioload, I can't see the nitrates soaring like they would with livebearers.

How much over the one inch per gallon rule do you think I could go?

6 Zebras (12in)
6 Harlequins (12in)
2 otos (3 in)
6 Cories (15in) <--not all get the same size (males and females)
(Decided to skip on the shrimp)

Since these fish are all in a different strata, have a low bioload, I can't see it causing any trouble. If it does, he can always sell/give a few away. Do any of you think it'll be a problem.
 
Anyone know if that'll be ok? If not, maybe 5 rasboras and five zebras will be ok with the rest.
 

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