Hi all, I think that one might be Rotala indica.
"Green" frogs (Pelophylax spp.) are much more aquatic than the Common Frog (Rana temporaria), which only hunts terrestrially.But don't survive that freaking frog, it is hunting them, I saw it catch one passing by while taking this picture...
Hi Marcel, I think when you add up all the plant mass in the system you get why you don't have any algae in that little tank.
Hi all, "Green" frogs (Pelophylax spp.) are much more aquatic than the Common Frog (Rana temporaria), which only hunts terrestrially.
We have naturalised Pool Frogs in quite a few places now in the UK (our native Pool Frog has gone extinct).
That could be it, it's the most obvious reason... That little paludarium next to has the same, not a speck of algae on the glass in the submerged part. And it's bursting from plant growth. The watermint and rotala indica in it go crazy. It actually needs a severe trim but yet didn't feel like it.
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But the zinc tub itself, having the most plants of all in it is growing a thick sheet of dark green aufwuchs against all the walls. And this is about 75% shielded from any light due to all the plants in it. And it starts up each year again completely clean...
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In a way this mystery is baffling me, glass stays clean the Zinc tub walls are covered with aufwuchs...
It doesn't always make any sense... Obviously it doesn't always like to grow on glass...
The 2 other tubs in the garden that also have a lot of plants but are stand-alone and both do grow a lot of hair algae... But in the tub system, I never found a single hair...
Gardeners World Montys Hostas next to his wildlife pond hardly any slug or snail damage The frogs have left the water this time of year but still around the margins but feeding on the slugs and snails that the Hostas are attracting them
I think you get more signs of green growth in the bathtub simply because it's where your fish are, so where the greater concentration of fertiliser will be. The other tanks stay cleaner because although they share the same water, the nutrients will more slowly be trickled through them. This is the principle of slow flow refugium in marine tanks, the water enters with elevated nutrient levels and comes out with near zero nirate and phosphate if you get through flow right.
<"Definitely an opening">. There was a vogue for "Snail egg caviar" about 30 years ago in the UK, but as far as I know not many people are eating Garden Snails at the moment.Since all nowadays hipsters are into Retro and Vintage someone should considerer opening a Brasserie serving these historical dishes.. Then name it something like "Snailer Jack's Snacks"
not many people are eating Garden Snails at the moment.