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So for a 2g betta tank with no filter, how often Sikhs the water need to be changed?
Another question, I'm looking at upgrading to a 20 long and dividing it for multiple males.
So would a sponge filter be better than an hob filter?
I had a divided 10g with a HOB. I used tubing to extend the intake so it could be placed on the opposite side of the divider from the outflow in an attempt to make sure that all water in the tank would be filtered. Even with adjustable flow on the HOB, the water movement was decidedly different on the two sides, and I can't say that both bettas were equally happy. Long story short, I lost one fish shortly after, so my dual tank wasn't set up for very long. If I had it to do again, though, I would set up with a sponge filter for each section as umarnasir335 recommends.Sponge filters work really well for tanks 5 gallons or smaller.
I run sponge filters on a divided 4 gallon, a 3 gallon shrimp tank, and 2 for my 20 tall, and do only weekly 50 percent water changes. Of course, plants help with the nitrates
Also, most bettas dislike HOB filters, especially on smaller tanks.
Beautiful tank and betta, Fishumms. You're right about fast-growing plants helping with water quality. So you grow the duckweed for your pond on purpose? Do you have goldies or something in the pond that eats it?2.5 gallon tank I've had for about 10 months. It is heavily planted with immersed plant, can't see in the picture. I do a 50% maybe less once a week water change. There are also 2 sulawesi snails. It is "dirted". I believe the plants make the difference. They grow very fast. Floaters in particular. It generates enough duckweed to fill my 75 gallon pond on a regular basis.
Also, it has a heater but no filter.
This is a good idea and the filter itself is great, but it isn't fully adjustable.i would filter it with a tetra "whisper 10i" filter. they do not make much current. i have one in my ten gallon and it makes what looks like its(the filter's) own bubble nest