so i've had a 10 gal brackish set up for a few months now. I've been having a nasty algae issue for a few months. I've taken everything outta the tank. I've tried everything... more flow, less light, low grade and high grade phosphate remover and changing out the sand completely... it keeps comming back. I test my water and have has 2 LFS test it... they said everything is where it should be... any suggestions?
well first let me admit that i am stabbing in the dark as i have not done a brakish tank before..... what are your inhabitants? could an addition assist here? a crab perhaps to eat it?
also what type of filtration are you running? is it possible to add a product i was reading about called Chemi-pure? this stuff works great in nano's so may do well for you look it up and see....
What type of lighting (if any) do you have on the tank (Kelvin rating of the bulbs) and how many hours a day do you have the lighting on? I assume since this is a brackish tank you have no plants?
Any chance you know what type of algae? Brown diatoms, green spot, hair algae, etc.
If you don't already have plants,Vallisneria and Jave moss are both doable for brackish water,as well as java fern and anubias if the salinity is closer to freshwater than saltwater.These could help use nutrients instead of algae.Also Nerite snails are good algae eaters.By less light,do you mean duration or intensity?Using a lower kelvin rating bulb might help.
Inhabitants- Nothing... i pulled everything out.
Plants- Had anubias and that didn't do to well
Filtration- Custom built sump with fluval lab series phostphate remover and activated carbon 200gph
Light- Current USA Nova Extream. Removed 1 bulb running around 6 hours a day
this is what this stuff looks like
oh and i've switched to RO water purhcased from LFS
I'm not 100% postive but it looks like cyanobacteria to me.
Maybe google images for freshwater cyanobacteria and see if it's the same stuff. If so, here's a good article to read:
I'd like for Byron to see and input on your problem as he always has the solution. I'll send him a PM to take a look.
If your saline level is above 1 you will have trouble with plants, I can understand that. Algae occurs because of light and nutrients, and when there are no plants, there is nothing to use the nutrients but algae.
That looks like what I've seen in marine tanks. As I have very little knowledge on brackish tanks, I'm thinking a post in the saltwater section might help. Probably under Saltwater Aquariums to start off.
P.S. Just noticed this post was in Saltwater already. Kim linked it to me and I hadn't noticed. I still think that is where help lies though.
Agree, as I've seen cyano in marine tanks. One of the S/W guys will come along and they will know how to help w/ the best advice about what to do in this situation.
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