I have 0 experience myself with sponge filters. I did find a small low flow filter with an included baffle I like though. Have it on 3/4 betta tanks. Comes with like 3 or 4 different tanks that walmart sells. I have bought their little 1 gallon tanks just to cannibalize the filter from it and thrown away the rest to place in my 5 gal tanks lolOh phew! I’m so nervous changing to this that I’m regretting it haha!
I figure I’ll give this one to my plakat first so I can see how he goes as he loves current anyway so if it’s a bit stronger than my current ones he won’t care but it’ll give me a idea if my Halfmoon will cope...
if it’s too strong I’ll take this system out of it and my options will be sponge filter ( which are hard to get here and I’ll be asking you guys to help me with listing what I’ll need and how to set it up) or the pet store recommend a marina i25 filter but I know nothing about that either