Tropical Fish Keeping - Aquarium fish care and resources

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-   -   Diatom Bloom, now what. (

Bartman 04-03-2009 04:36 PM

Diatom Bloom, now what.
So I am experiencing a Diatom bloom on a newly started tank. It is 2 week into the project. It is the 40 gallon set up listed below. Now what is the next step to properly move things forward?

Shaummy 04-03-2009 04:59 PM

The right thing to do right now is be patient and wait. Diatoms are all part of the tank cycling process and usually go away as the tank matures.

Bartman 04-03-2009 05:18 PM

So wait till they go away? Cool, sounds good. How about putting in some cleaners to clear stuff up or is it to early

Pasfur 04-03-2009 06:06 PM

I would add a few hermit crabs and a few snails. Otherwise, you are right on track. The diatom is a sign that things are progressing as expected.

Bartman 04-03-2009 06:30 PM

Fantastic. What is the best form of acclimation. What do you guys do?

As well, when should I perform a water change and what is the regular sched. for water changes on a set up like mine, once a week?

Pasfur 04-03-2009 06:52 PM

If you do perform a weekly water change, I would just change 2 to 4 gallons. I think the real test is how stable your alkalinity stays and how your nitrate readings change. You certainly want regular small water changes, but I would not do any sizable water changes unless there was a specific correction you were trying to achieve.

I use a drip system for acclimation.

Bartman 04-03-2009 07:12 PM


Ok so here are some crap pics from my tank. My girlfriend took my nikon d40x for the next few days. I'll have some better shots but here is the diatom bloom in action. Starting to show up on the sand.

Here is the bloom on the sand. Don't know if you can see but on that smaller rock I am getting what looks to be some sort of grassy looking stuff. Up close they are a faint green. What is it?

Here is a full tank shot

Here is a picture of the skimmer at work, does it look like its doing the job? It is brown but I am not sure I am letting enough air in for the bubbles to come up but if I even crack in a mm it fills up in an hour. How often should this cup fill up? It is a Tunze 9002 rated for 52 gallon on this 40 gallon tank.

Bartman 04-03-2009 07:13 PM

And an update, I am going to be purchasing a current-usa 6x39 watt T5HO unit, dual fans, individual reflectors, the works. I hope it is a good one and I should have enough wattage for this tank and others if I ever upgrade to a 60 or something. :D

onefish2fish 04-03-2009 07:19 PM

diatoms are a natural thing and happen to any new tank. the green "grass" sounds like its green hair algae which means theres either high nitrates and/or phosphates. are you using RO/DI water? are you feeding? how often?

the skimmer looks like its doing alright, i have def. seen better performance on skimmers. how long ago was this set up? a skimmer will take a week or so to "break in" so it can build up a slime to skim properly.

conger 04-03-2009 08:54 PM

btw, nice rockwork!

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