Hello there everyone. I've recently gotten back into the betta fish game after a long hiatus, and thanks to all the good information here, I now realize I've been going about it all wrong for...well...forever. :P
Currently I have two 1 gallon bowls (getting bigger ones isn't in the budget at the moment, but I will later) for two fish, and I'm looking to get a good filter for each. I've only been able to find one undergravel filter on Amazon for that size, and I'd like to know if this one is any good, or if anyone has any others they'd recommend. The bowl is spherical by the way.