Hello! I have a 20 long aquarium that currently houses 3 ADFs and some plants. The filter I have been using (old, cheap submersible) puts out a very calm, basically nonexistent current, which is great for the frogs but has been a real detriment to my plants. The plants are low light/low maintenance, but still they need more flow than totally stagnant water. Also the flow was so low that dust settled on the top of the water often. Gross. I added a second filter (another old, cheap submersible) and the current was way too strong. I baffled it and we were back you having too little current. I was wondering if you guys had suggestions for new setups (filters, powerheads, anything) that might give me the current I'm looking for, or better yet, suggestions of how to change around what I already have. My goal is a slight current such that I can see the plants waving slightly in the water, but such that the frogs are not simultaneously feeling blown away. Thanks!