Joseph Arseneau wrote:
Hi guys,

I have an established 2.5 gallon tank, that currently has 10 fish in
it, no bigger than 2 inches each. I am wondering what I can do to
control my algae problem. I currently have an 18 watt light on top of
it with no live plants. Any help would be appreciated.


Are these figures correct? Your tank is MASSIVELY overstocked. I always
use the rule of thumb of 1 Inch per gallon of fish - keeps you out of
trouble.

You have 20 inches of fish in 2.5 gallons.....