vancouver
- l l a m a s -
I don't think I'd add any more fish.

It is these dark bands that give this fish it's common name of Yo-yo loach, for looking at the markings on this fish with very little imagination you can read YoYo.
if you have a spare ten sitting around then keep that empty. It's always a good idea to keep a Quarantine/hospital tank handy.
The main issues with stocking are (IMHO) distribution, filtration, airation, and aggression.
Distribution: Is one section of your tank crowded, do you have a whole lot of bottome dwellers and very few top dwellers? if so then your tank is imbalanced and your bottom dwellers will be stressed because of lack of territory.
Filtration: What are your Ammo, NI, and NA levels. If they are 0,0,and X<40 and you think your close to your stocking limit then your filter can probably handle a few more small fish. If you add a few more fish and end up with latent ammonia nI or high nitrates you can increase your filter capacity by adding more filter media, buying an additional filter, or upgrading your entire filtration system. You can also add plants to your tank.
Airation: How large is the top of your tank. If your tank is very tall then that means that you have low surface area. This means that there is less space for oxygen and cO2 exchange between the air and your water. There are calculators to help you figure this one out...I don't have a link handy but I'm sure someone can help you out. You can increase the surface area of your tank by adding a bubble rock or preferably a powerhead. These things stir up your water making more of it come into contact with the air per minute. Not only that but the also cause ripples in the surface which allows a lot more water to contact air at any given time.
Aggression: The most important question you should ask yourself is are my fish getting along, or if your fish aren't supposed to get along then you should ask yourself does each fish have it's own territory, can the weaker fish easily escape from the stronger without getting hurt? Is there enough room in the tank for a few more fish to have there own territory.
This is just the tip of the iceberg, basically what I could think up in a matter of minutes. Stocking to the maximum is a very tricky thing to do. It's a lot easier to just go with the old stand by and say 1" of adult fish per gallon, then again even that rule is tricky...
) and platy! yippie!

