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Protect your biofilm

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There are some times when you need to drop the water levels in your tank, for example, to change substrate. 

You've spent potentially months or even years cultivating a nice layer of biofilm on the walls of your tank. So how do you stop the biofilm from drying out and dying off? 

The simple solution is gladwrap/cling film/clingwrap. Simply lay a piece over each wall of your tank to keep in the moisture.


And when you refill the tank it will float to the surface for easy removal. 



Edited by fishmosy
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Very good to know!

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Good tip.

I wonder how much the new (cold) water will effect the biofilm, but it's less then to dry out for sure.

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I havent noticed any ill effects, though I dont tend to add water that is very cold. 

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    • Matuva
      White bloom is usually bacterial bloom. I'm especially enclined to diagnose that, considering this happened just after you added some Bacter AE. I don't think this is something crtical, but I understand it can be annoying. Try again a partial water change. If you can, vaccuum the substrate, add Mosura BT-9 if you can find some, or live bacterias such as Bio Nitrivec.
      This problem can clear itself after a more or less long time. In my case, it took 2 weeks in one of my tanks. In another tank, I had to use an UV filter. my .02
    • Robert42
      Hi, I am a newbie to shrimp keeping and I have come here for some stability in information as to looking around the information of various fish forums vary so much. Some say RCS are easy and will thrive in the same parameters as community fish others will say a great deal more care and closer parameter adjustment. All confusing. So I am hoping to get advice that I can work with. I have on order and should hopefully be delivered this week a custom 25cm cube tank (about 10 gal). I have a sponge filter and air pump as well as a heater. My plan is for a planted tank for my red cherries and hopefully some tank mates but I would like them to breed. My water is classed as ‘Moderately Hard’ GHd 9.84 pH7.25 as per suppler analysis.  Talk of using a TDS pen. I can easily order one, but should we not be aware of what constitutes the dissolved solids or does not that matter? Light for the new tank, 6500K or 8000K which would be best for my shrimp to stand out. I keep going on line to order one or the other and end up not ordering anything. Substrate for both shrimp and plants. All I am sure of is I would like it as close to black as possible. The plants I intend would be Java Moss, Java Fern and Anubias nana petite possible water sprite as that can float and go in the substrate. I welcome any suggestions and I will probably have more myself. I am in no hurry to add livestock . Thanks 
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      i have a 225ltr tank which as been running since early November, planted, ph 6.2 temp 22.8 tds 170, i put the first lot of shrimp in early january not had any problems, molting as normal and a few berried. a week ago i put a scoop of bactor AE in and just after that a white mist or bloom appeared in the tank, partial water changes have done nothing to help, all shrimp are fine and water is at the right parameters , anyone have any ideas what this could be?, the filter system is a fluval 306 external, i also have an oxydator, and i dont have anything in the tank thats breaking down cheers richie 
    • s1l3nt
      Hate to barge in on you two... ;) 

      Your welcome JC, anytime bro :) That rack sure has come along but i got one thing to say: BOOOOOOOO! no up to date photos.... Hahaha :D
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