What would be a good filter for a 40 gallon if I change the subtrate to a plant friendly one and sand mix.
Right now I use a UGF
on one side and plant the other. This has worked out famously well for the plants and the water quality up to the 18 gallon....
Occasionally when I mess up while cleaning I have an auxillary corner filter to clear the water.
But I am not sure when moving up to the 40 if this could still work, and I do want finer substrate for the loaches and BGKnife who are the main residents.(currently the halves have typical gravel size and then I have larger rounded river rock gravel to clean easy and pick through.
If possible I want something I can shield/control the current strength of and transfer to the bigger tanks this summer.
The Polypterus and dinner guests will have a 170gal tank and the Knife and co a 150gal (Approx because they are getting custom measurements for "creature comfort")
I am all open on this though I do trust certain brands more than others...
So far nearly all my equipment is Hagen with a few exceptions ^_^