i am new here, i bought a fish tank (about 33) gallons. it was second hands, came with aqua-tech 20-40 filter.
i want to replace it with something better.
i did some research but i can't decide between these models:
i like the fluval one, but i don't know if i need a C4 or C3 will do the job.
2 Tetra (red nose)
2 gold barb
1 Angel fish
1 bleeding heart tetra
1 don't know is name ( same size then my bleeding heart tetra, but clear color)
1 big Pleco Catfish
please help me.
sorry for my bad English