Tropical Fish Forum

Tropical Fish Keeping Help and Advice => General Fishkeeping advice => Topic started by: Paddy60 on July 12, 2017, 07:41:12 PM

Title: tank turning brown
Post by: Paddy60 on July 12, 2017, 07:41:12 PM
my tank plants and decor are going brown .I have been cleening these every week but they quickly become brown again. I think it could be Diatoms .Have increased lights on time from six to eleven ,and it seems worse .I have some live plants and belive lots of light is necessary.Any help on getting rid of this please?
Title: Re: tank turning brown
Post by: fcmf on July 12, 2017, 10:01:32 PM
Others eg @Matt are much better at explaining plants' requirements than I am. However, 11 hours' "lights on" seems very excessive to me - 8 hours is usually much more the norm/upper limit. Do you use any plant fertiliser or other products?

Title: Re: tank turning brown
Post by: glitch74 on July 12, 2017, 10:15:35 PM
I had the same problem when I set up my tank, plants covered in brown algae, I bought 4 otocinclus, one week later all the brown was gone and it never
came back.
Title: Re: tank turning brown
Post by: Littlefish on July 13, 2017, 06:39:56 AM
I have added links to a few articles that I have found helpful when I had similar problems.

http://www.thetropicaltank.co.uk/algae.htm
https://pethelpful.com/fish-aquariums/How-to-get-rid-of-Brown-algae-or-Diatoms-in-freshwater-aquaria

Checking lights, tank maintenance, water changes, cleaning decor by hand, etc. all useful to resolve these sorts of things, unless you really want to get some algae eating fish.

(I wanted some otos, so spent quite some time growing algae in bot the the quarantine & final tank before I got them)
Title: Re: tank turning brown
Post by: Paddy60 on July 13, 2017, 06:46:29 PM
Thanks all. Doing regular weekly water changes, cleaning and lights ok, reduced lights on time back to six hours. I have a few live plants, and yes using fertiliser, plants are vallisnaria and anubias. Tank has 12 tiger barbs in. Are ottos OK with these?
Title: Re: tank turning brown
Post by: Littlefish on July 13, 2017, 08:14:47 PM
I'd say that tiger barbs may be a bit nippy, even though otos are quite quick. I'm only going on how crazy my tiger barbs can be, especially at feeding time, but others may be able to offer more advice.
Title: Re: tank turning brown
Post by: Matt on July 14, 2017, 08:30:30 PM
Others eg @Matt are much better at explaining plants' requirements than I am. However, 11 hours' "lights on" seems very excessive to me - 8 hours is usually much more the norm/upper limit. Do you use any plant fertiliser or other products?

Just catching up on this and tbh I've not got a huge amount to add, and agree with everything said so far.

With just vallis and anubias I would probably reduce the fert levels to half the recommended dosage. Vallis tend to take its nutrients from the roots and anubias is very slow growing.  Advise you don't dose one week then go for half levels from then onwards.  You would be better with root tabs possibly for the vallis and not bothering with the ferts apart from micronutrients at a low level.
Title: Re: tank turning brown
Post by: Paddy60 on July 14, 2017, 08:34:03 PM
OK thanks matt