Næsten enig, men at den ene type bakterier skulle være gram positive, og den anden gram negative og at red slime remover kun skulle ramme den ene slags har vi jo indtil videre kun producentens ord for.Nolan skrev:Nej - det er to forskellige ting.
Det påvirker ikke nitrifikationsbakterierne.
Lars S skrev:Et lidt dumt spørgsmål .. måske !!!
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Hvis alligevel ''man'' overvejer at smide det hele ud, så vil jeg da evt. prøve dette først, hvis man da ikke absolut vil skifte eller lave det hele om.
Bare en ide, som jeg helst ikke vil have nogle ''høvl'' for !!
men ellers er det jo en god måde, hvis det har virket hos dig... 
/Magnussaline skrev:Nitrosomonas and Nitrobacter are obligate aerobic gram-negative rod bacteria. Cyanobacteria are (often facultative) anaerobic gram-negative, varied shaped bacteria. Gram negative/positive refers to the basic staining technique used for differentiation purposes when identifying bacteria. Depending on the stain retention (which is related to cell wall structure) bacteria are categorized as gram negative or gram positive. Obligate refers to if something is required; in this case for growth to happen for an obligate aerobe, oxygen must be present. Facultative organisms can make due with or without.
Cyanobacteria are some of the oldest organisms on the planet. Something had to fix nitrogen to get us the oxygen we breath, so we should be somewhat happy they want to still stick around (in our aquariums unfortunately). They use light and they use nitrogen - the end product of the nitrogen cycle which nitrobacter and nitrosomonas are a part of. Anyone that says - fix your water quality, increase your water flow, blah blah blah and it will all be better is wrong. Cyano hasn't managed to hang on for millions of years without being highly adaptable. If they have light and nitrogen, they have a food source, and they can grow.
Erythromycin is generally active against gram-positive cocci, but also to a lesser extent, gram-negative anaerobes. Erythromycin has a fairly short half-life in comparison to other antibiotics (ie. it breaks down quickly).
So what does all of this mean?
Erythromycin is usually administered to treat gram-positive infections - not to treat infections from gram-negative bugs such as the ones that inhabit our aquariums (good or bad). Since it has some impact on gram-negative anaerobes, it works against cyanobacteria. Since it is not considered effective against gram negative aerobes, the nitrobacter and nitrosomonas should not be as susceptible. Worried about creating resistance? Cyanobacteria are already resistant to antibiotics! Dosage and treatment time are likely key, but I am unfamiliar with any published research in this area (Anyone need a doctoral thesis?....).
When people talk about their tank crashing after administration of the antibiotic, my thoughts are that it is a cascading effect of the cyanobacteria die-off. The dying and stressed cyanobacteria can release cyanotoxins which can kill other organisms. When things go bad in your tank, it is probably the toxins, not the antibiotic.
So if you are going to use the antibiotic in your tank, siphon out as much of it as you can just prior to administration, this will reduce the number of cells present, and reduce the amount of potential toxins released.
Hougaard skrev: Jeg skrev "for rundhåndet" - jeg har også selv brugt det, og i ganske små mængder - men hvad sker der hvis man "arrigskab" bruger for meget ?
hva skal man bruge til at måle det med ...! og hvornår vil du mene at det bliver kritiskMicrosiemens er udtryk for vandet ledningsevne. Da alle minerallerne i vandet er elektrisk ledende, stiger Ms tallet jo flere mineraler.
Osmosevand har som regel mellem 10-30Ms.
Vandet her på Sjælland/København er mellem 700-1000Ms
Jo lavere tallet er, jo mindre næring er der til alger.
ja oki så kan man jo lige så godt tage skridtet ud og anskaffe osmose..! har heller ikk noget problem (da jeg ikk er startet endnu) men mere fordi jeg ikk regner med at bruge osmose og så var det for at konkludere om det skete en ophobning af mineraler fra drikkevandet, men den tid den sorgDer bruger man et elektronisk Ms måler. Det koster omkring 500- 600 kroner.
Ja, hvad synes du selv?? Det er ikke sådan til at stille en regel op, tror jeg. For hvad er det nogle mineraller der er i vandet?
Har du alge problemmer som du ikke kan komme af med, selv om du bruger Rowaphos og lign. Så var det nok værd at måle.
