Should Mollies be used to cycle a tank

RiaanP

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Time for a little healthy debate.

Should Mollies be used to cycle a new tank?
 
Maybe change title to " Should anyhting be used to cycle tank or check of water quality is fine "

I say NO. Its cruel to put a fish/coral in a tank when you know the water quality is not good and stable. What happens to the molly once the cycle is complete?

Before adding any livestock, you really need to know what cycling a tank actually means and why you do it.
 
Hell no!

By using a pure ammonia source you can feed the cycle much better and build up a much bigger bacteria colony than you could ever do with fish. This is not just better but it is not cruel to anything.
 
I think it is highly unethical and cruel to use any critter to cycle a tank!
We are a advanced species and there are many products on the market that we can use to cycle a tank!

So why put a creature through stress!
 
No - the tank can cycle without adding a fish to do so. It is cruel!
 
How many people actually setup a tank & add in LS either that very day or the following week just because you adding special blend, stabilaty or prodibio doen't make it ok to do so. Yes they may survive the cycle but it's more cruel & expensive that way. Right?????

I've setup several tanks & had the tank cylce at least a week or two before adding a mollie or two to help with the cycle for several weeks or months & leave them there either in the main tank or in the sump. Sorry for being old school but that's the way I was tought so wil stick to what works.
 
Starting the tank with freshwater with Mollies, then raising the salinity until 1.1025.

Then only can you add your liverock .

Keep that in mind.
 
Mollies natural PH range is 7 to 8. Marine tanks are slightly higher 8.2 to 8.4
 
No - if you do that, you obviously do not know what happens during the cycle. Read some books and posts on forums about the cycle. Spend some money on test kits rather that using fish.
 
Theres enough die off on most liverock to get the bacteria growing, so i dont see why you need to add a live fish or even a piece of shrimp.
The whole point of the cycle is to get rid of die off and establish a biological filter. The new additives we have do that extremely well, why stick to old techniques?
 
or even a piece of shrimp.
this one I never could understand.
You got enough dead things in the rock. Why add another big piece of dead flesh to make matters worst?
 
Mollies seems not to be bothered by the salinity, but they prefer high mineral environments. So adding the Mollies is exactly the same as adding Blue Yellow tail damsels to cycle a tank. No difference.

Mollies have been transported around the world and released into all kinds of environments. There are, for example, populations of mollies established in the marine Gulf of Thailand. Mollies have also become established in the United States in freshwater rivers and lakes far inland
The truth about mollies:ÂÂ*Among the most popular aquarium fish, theyre also among the most misunderstood
 
this is not an attempt to hijack an already hijacked thread.. hahaha
a possible bonus of adding mollies (sailfin) either before/during/after the 'cycle' is that adding both male and female could result in free live food every 18 days when the eggs are laid.....
 
Mollies are excellent algae grazers... Just saying.
 
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