I've just recently got a Biorb tank (30L) and have introduced 4 male guppies (2 Dragon Tail and 2 Cobra).
What would be suitable companions for these? I've been thinking of a fighting fish, some neon tetra's and ruddy nose tetra's. Would these be ok?
Also I'm after a pleco to keep the tank clean, but only want one that will stay tiny. Any suggestions welcome.
Thanks in advance
What would be suitable companions for these? I've been thinking of a fighting fish, some neon tetra's and ruddy nose tetra's. Would these be ok?
Also I'm after a pleco to keep the tank clean, but only want one that will stay tiny. Any suggestions welcome.
Thanks in advance

to TFF

I've started with a small tank as I'm new to fish keeping so didn't want to buy a huge tank when I'm not sure exactly what I'm doing.
and it involves actually growing two specific species of bacteria on the surfaces of the "biomedia" in the filter (sponges etc.) ... its to carry out something you can read about called the "Nitrogen Cycle."
well I followed all the instructions for the set up of the tank correctly, plus I took advice from a local fish supplier and left the tank about 2 weeks, testing the water and making sure the levels were ok before adding any fish. I did read about leaving the tank quite a while but was told that 2 weeks would be ample for the size of tank.
Letting a tank sit without either fish or other source of ammonia does nothing to start the process. Now you will need to follow the directions for doing a "Fish In" cycle. That's OK as long as you make it go slow to avoid the ammonia and nitrate damaging their gills and otherwise weakening them.