10-27-2006, 08:48 AM
Join Date: Mar 2004
Location: Leverett, Mass
iTrader Positive Rating: 100%
Originally Posted by epicfish
How are you adding the glutaraldehyde to the tank? Maybe if you had enough riccia, you could do a few experiments.
Have thse following groups of riccia:
2) Tied to a rock closest to the area where you dose your glutaraldehyde
3) 6 inches away from rock #2
4) 6 inches away from rock #3...and so on so forth.
This way, we can see if the initial "shocking" concentration of glutaraldehyde has anything to do with its death, or if the overall concentration of ~3.75ppm is enough to do it in. If we can figure out what's actually killing it, we might be able to find a good way to dose the glutaraldehyde. ie: Maybe mixing it with new water during a WC and adding it that way, or adding it as the water flows in from a python or something similar.
That could be a bit hard to control in a normal tank, but in my case I have 3 groups of riccia rocks. Group front left, group front right, group in the middle. Only the middle grouping was effected by the glut application and I assume this is due to eigher the highe rlight this group gets, or the fact that I apply the glut in the front right corner, so maybe that is where it settles first.
What is interesting is that a 15ml dose (3.75mg/l) did not really knock out the BBA or all the riccia. Only some riccia was affected and the only BBA hurt seems to be what I directly applied the D'cel to with a syringe at the last WC. I have not changed the CO2 levels though 2 weeks ago I increased the dosing of all my other nutrients. In the past larger doses of Excel would make the BBA turn pink, in this case, only direct application seems to do that. It does seem though that there is no new algae forming, which seems like a promising sign since I did not change the CO2 levels. I added a few Amano's a couple days ago, so we'll see if they pick at any possibly unknown weakened algae.
Is my math right now-> 15ml of a 2.5% solution in 95L=3.75ppm?