- 4 Aug 2015
Boys, any thoughts about lower temperature tanks vs BBA? Would the slower growth of plants also allow the algae to take over?
It certainly can.. In my larger low tech i have a truckload of wood with caves and shaded overhangs, lots a difficult to reach nooks and crannies overgrown with small Anubias. This tank has a lot of dead spots accumulating debri in the substrate under teh wood and its surrounding edges.. It shows as a light brown particle stacking up on the black substrate. BBA grows on the wood surrounded by this accumulation at the shaded caves entrance. Lowest light there is, substrate level in the shade. It explodes if i do not clean out the debri than it spreads over the substrate as well. It has a mixed substrate, gravel with smaller chunks of black crushed lava rockIt can virtually linger and grow in the dark IME.
I have similar experience as yours. I have a one gal planted shrimp bowl by the window (in the avatar) that has no heater, no filter, and no artificial light, just receiving 4 hour direct sunlight daily. The plants are lush with no trace of BBA from day one I set it up. I transferred some BBA infested plants from my big fish tank, and the BBA are gone in few weeks. I do not fertilize or do water change, except I top it with dirty water from my big fish tank regularly. Nitrate is always detected near zero. Occasionally I do negative WC by replacing a few ounze of clean water in the bowl with dirty water from my big fish tank.What baffles me most is 1 little 25 litre tank only stocked with shrimps and snails never fertilezed standing for a few years periods heated and periods not heated, it stands beside a window and has only natural light. It never even grew a spot of BBA, if i throw BBA infested plants in there they come out clean weeks later.
Likely not, glass filters the majority of daylights harmfull UV, that's why we do not get a burn nor a tan from sitting in the sun behind glass, we only get hot. For the rest conserning UV lights as used in aqaurium and ponds it can kill free floating 1 cell organisme in the water column such as germs and free floating algae cells causing green water. Only if there is sufficient intensity and exposure time.. If both are not met it smiles and waves and swims by back to the tank.Is it UV from direct sunlight
That isn’t true. Truck drivers who are exposed to glass filtered sunlight on one side have uneven tanning that has been demonstrated by X-ray of excessive skin damage on one side of the face.Likely not, glass filters the majority of daylights harmfull UV, that's why we do not get a burn nor a tan from sitting in the sun behind glass, we only get hot.
ostracods can certainly take out GSA, but not bba as many bba infested tanks have ostracods too.The tiny ostracods etc could have a significant effect though. I've heard of them destroying GSA in some tanks.