Suggestions for a broad but very slow wave maker for a 5 gallon tank

I'm looking for a wave maker that has a large area of current (similar to my hydor 240 gph); but much slower - around 50 gph. I can't seem to find anything that slow. The hydor produces too much current. I've thought of a tiny pump and trying to make a spray bar out of tubing but would prefer a simple wave maker if such a thing exist.

 

I do not know where you live, but there are some small submersible pumps like this one:

https://www.amazon.com/PULACO-Submersible-Aquariums-Fountain-Hydroponics/dp/B07SJGKFT7

You would have to make your own spray bar but that is easy enough if you have access to a drill. Find out what size tubing fits the discharge of the pump and obtain a few feet. Cut a piece of tubing to go from the pump to a 90 degree tubing elbow. Then cut a piece of tubing to serve as the spray bar. Drill or punch holes and inch of so apart. If you are using a drill bit, something like 3/16" diameter will be about right for the holes. Then get a plug to close the other end of the tube.

 

Suggestion: air stone or HOB filter. Simple

 

I have something like that; the problem with the tubing is that it is pretty soft (flexible). Also i would need to find something to attach it to the edge of the tank. Also it is not that easy to put holes in rubber tubing. I was thinking maybe using nails - a drill would be rather difficult - but in truth i would be happy with something like the hydor wave maker if it was only 50gph - it has at least a moderate propeller and not as concentrate as a pump - just need to find one that is a fraction of the hydor.

I do not know where you live, but there are some small submersible pumps like this one:

https://www.amazon.com/PULACO-Submersible-Aquariums-Fountain-Hydroponics/dp/B07SJGKFT7

You would have to make your own spray bar but that is easy enough if you have access to a drill. Find out what size tubing fits the discharge of the pump and obtain a few feet. Cut a piece of tubing to go from the pump to a 90 degree tubing elbow. Then cut a piece of tubing to serve as the spray bar. Drill or punch holes and inch of so apart. If you are using a drill bit, something like 3/16" diameter will be about right for the holes. Then get a plug to close the other end of the tube.

 

I have something like that; the problem with the tubing is that it is pretty soft (flexible). Also i would need to find something to attach it to the edge of the tank. Also it is not that easy to put holes in rubber tubing. I was thinking maybe using nails - a drill would be rather difficult - but in truth i would be happy with something like the hydor wave maker if it was only 50gph - it has at least a moderate propeller and not as concentrate as a pump - just need to find one that is a fraction of the hydor.

Although tubing is designed to be flexible, you can get heavy wall PVC tubing that is somewhat stiffer making it easier to drill. You are right about drilling in rubber being difficult because of the high friction, so I would not recommend rubber.