Minimal Flow to not hurt floating plants???
Hello all, my first post here!
I am posting because my better half and I started a little outdoor pond project this year, and said better half (lets call her Mother Nature) she had decided that some snails from the petstore and some Watter Cabbage (Pistia Stratiotes) would be a good method to control algae growth. And lo and behold this rather amateur project has proved quite successful actually, gotta give her credit. However, living in a northern climate (about 42 deg lattitude) I realize the first frost will be on us sooner than we know it and Mother Nature dosent want the snails or the water cabbage to freeze so we have been discussing building a planted aquarium to over winter our new aquatic friends... so here I am.
We have been gathering equipment slowly and recently have found a 60 gallon glass tank w/ a stand for a song on craigslist thats 4 ft long and 12 inches wide and say maybe 20 inches deep or so. Long and narrow but tested with No leaks, and its really accelerated our progress of getting ready before the fall.
The water cabbage dosent like any consistent water movement. It just likes to sit and in our outdoor pond and the ones that get caught near our little water fountain pump really take a beating from a simple water of stream if they stay there awhile.
So I have been looking at wavemakers with low flow rates to give my tank a bit of circulation but not enough to disturb the Water Cabbage. Alot of them have thousands of gallons per hour flow rates... So my question in a nut shell, is what is a good flow rate to target for a long narrow tank to get enough circulation but not enough to hurt my plants. Any help is appreciated. Thanks!