Plant newbie who needs some tips! - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 14 Old 08-05-2010, 01:44 PM Thread Starter
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The site a bought the bulbs from claim they are 6500k. Also, my hood is set up so it has two standard base sockets that you screw the bulbs into, and it can only fit 6 inch bulbs. Here's what I have...

Anyway, I found some Brazilian Pennywort. Do I need any fertilizer or CO2 injections? It would be the only live plant in there at the moment and there's only one betta in the tank right now. Do I just toss it in the tank and let it float?
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post #12 of 14 Old 08-05-2010, 05:19 PM
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Those look good, future reference if your not to concerned about get "Fish bulbs", walmart carries screw in CFLs for 6-$7 for 2 at 6500k. Don't bother with home depot as far as I could tell they didn't carry any screw in CFLs at 6500k (their full spectrum bulbs were like 5000k or something like that). If you just have pennywort I wouldn't worry about CO2 at all, it will do better with fert but I imagine it will do ok with out for right now. You can float it or plant it as far as I know, mine as never really done well either way, as I've had to much flow from my filter for it and also my fish decided that Pennywort roots taste really good. They haven't had roots on them since the first couple of weeks of them being in there, they are still alive I just don't get big leaves from them anymore.
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post #13 of 14 Old 08-05-2010, 08:36 PM
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Originally Posted by derpmeister View Post
Do I need any fertilizer or CO2 injections?
I use fertilizer on mine, but no CO2. Byron's sticky on growing plants says that you don't need it, so I think it unnecessary.
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post #14 of 14 Old 08-05-2010, 11:29 PM
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Those bulbs should work, might be a bit high in the blue though. Give it a few weeks. As for Pennywort, yes you will need liquid fertilizer. Stem plants are fast growing, meaning they need nutrients or they will start looking scraggly. Seachem's Flourish Comprehensive Supplement for the Planted Aquarium is what I use and highly recommend. If has everything they need in proportion. And you use very little, 1/2 tsp (2.5 ml) doses 30 gallons once (or maybe twice) a week. Make sure you get the product named; Seachem make several products in the Flourish line but this is the complete one and all you need.

CO2 is not necessary, there will be enough from the fish and biological processes in the aquarium. You need to balance the light and fertilizer, this can take a few weeks. Too much of either one and the plants can't use it and algae will.


Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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