Join Date: Oct 2010
Location: New England, USA
Most catfish have needs that don't mesh well with:
20 gallon tanks
Have said all that, I have 3 bronze catfish in my sorority. There were four; Baby Blue (my aggressive female betta) killed one - so they were moved to the 20 gallon tank.
They are okay in the sorority (for now) - the 20 gallon has sand substrate that keeps their barbels healthy and they can dig around for stuff, which makes them happy. But catfish really like to be kept in schools 6 and over (at 2.5" inches each, that wouldn't leave much room for a sorority)!
Also, my catfish don't eat algae in my tank... only the wafers I toss in for them!
If you want to keep algae down:
Do not allow direct sunlight to shine on the tank
keep the lights off as much as possible (unless the room the tank is in gets no natural light)
scrape the glass once a week
wash tank gear to remove algae
You are going to have live plants in the tank, so you will need some light, and have some algae. It's not the end of the world... in fact, it's nature in action (Although blue-green algae is another thing... if you ever need to get rid of it, search the forum. OFL has good advice on getting rid of it).
Removing algae by hand is not hard to do. It's better than risking some creature's life to do it... remember, bettas are carnivores in the wild. Any tank buddies you put in with them are snacks (including fish, snails, and shrimp).
If you want to feed living creatures to your bettas, get bugs. Bugs have great 'entertainment' value for your fish, are healthy and natural. And cheap. Did I say cheap? Try baby crickets (tiny tiny ones) and wingless fruit flys. As I have learned, some bettas in fact have poor health unless they have live critters in their diet. Bugs should be part of every sorority's varied diet.
20H: 2 Cory Catfish, One very mellow Cambodian female Betta, Two Golden Veil Angelfish (male and female)