Plants not growing? - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 10 Old 09-27-2012, 10:48 AM Thread Starter
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Plants not growing?

Hey start off the tank is a 55gal. Been up for almost 4months. i dose ferts twice a week with flourish comp. it has 2 18" 6500k bulbs over it. water changes once a week. has a hydro sponge filter. it is gravel bottom for now. i have guppies,9-10 Neons, and 3 Emerald Cories. with about 20+ little guppy fry. plants are green cabomba. 3 anubis. 2 amazon swords. 2 crypts. and some others not sure on names. also 3 jungle vals. And watersprite. only ones seeming to have growth is the water sprite and the crypts. Also i do use Prime as a condtioner for the water changes. and all levels are normal. Any ideas? PH is 7.5 or 7.6

55gal. Mbuna Tank. Aceis, Labs, Red Zebras,Cobalt Blues.

55gal Bowfront.Blood Parrot fish

55gal. under construction

awaiting to find 125+ for Mbuna
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post #2 of 10 Old 09-27-2012, 12:33 PM
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The issue is light. Over a 4-gfoot 55g tank, the absolute minimum lighting would be a single 48-inch tube. And that would be on the low end too. For the plants you name, a dual-tube 48-inch is best.

The Water Sprite is managing because it is floating (presumably), and crypts are very low light plants. But the swords will struggle, and fast-growing stem plants like the Cabomba willnever last. I can't keep this plant going, and I have two tubes over my larger tanks.

If you have to stay with the present fixture, other plants that should manage are Java Fern, Java Moss and Anubias. I believe you mention Anubias. But these are all slow-growing plants (hence, requiring less light), so don't expect to see them sprouting new leaves rapidly. If the existing leaves are remaining green, the plant is fine.

Byron.

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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post #3 of 10 Old 09-27-2012, 12:43 PM Thread Starter
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So i should do two 48inch 6500k tubes?
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post #4 of 10 Old 09-27-2012, 01:31 PM
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Quote:
Originally Posted by Brandonl87 View Post
So i should do two 48inch 6500k tubes?
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I would advise it, if you can. You don't want too much light, because then it will be beyond the nutrient balance, and algae will proliferate. But over a 55g 4-foot tank, two 48-inch T8 tubes will work fine. Years ago (1980's) I had a single T8 tube over this sized tank, and I just managed, but today i would get a dual-tube, it increases your plant options. Just make sure it is T8 (the regular fluorescent). T5 is very popular now, but this is much brighter light and two tubes is overkill, and unfortunately a single-tube T5 is impossible to find.

The 6500K tubes are good, you can use the less expensive ones made by GE, Phillips or Sylvania. I use these, much less expensive than comparable tubes from fish stores.

Byron.

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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post #5 of 10 Old 09-27-2012, 03:48 PM Thread Starter
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Thanks Bryon you been a huge help with almost all of my tanks . I'll go tonight hopefully and pick up two of the tubes from lowes or home depot. what would you suggest over a 125g with the same plants? Im in the process of changing my Mbuna tank over to something else and selling them to a friend of mine.

55gal. Mbuna Tank. Aceis, Labs, Red Zebras,Cobalt Blues.

55gal Bowfront.Blood Parrot fish

55gal. under construction

awaiting to find 125+ for Mbuna
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post #6 of 10 Old 09-27-2012, 06:52 PM
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Have ran a Dual 48" 6500K T8 fixture over a 55 gallon with most of the plants you mentioned with no problems expect algae on my floating plants. Now when I didn't have floating plants I had algae issues on the other plants. IMO this setup puts a lot of light into the tank and floating plants should be used.
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post #7 of 10 Old 09-27-2012, 06:57 PM
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Yes, i sometimes forget this as i always have floating plants, so it is just "assumed."

On the 125g, what is the tank length?

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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post #8 of 10 Old 09-28-2012, 07:34 AM Thread Starter
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Hey sorry it takes me so long to reply my labtop crashed so can only use the one at work now.. I love floating plants deff a must for me. The 125g is a 6ft tank. I did go by lowes and got 2 48" 6500k tubes so we will see how it goes now. Cant beat the price from LFS to Lowes i paid $8.50 for both compared to LFS's prices.

55gal. Mbuna Tank. Aceis, Labs, Red Zebras,Cobalt Blues.

55gal Bowfront.Blood Parrot fish

55gal. under construction

awaiting to find 125+ for Mbuna
Brandonl87 is offline  
post #9 of 10 Old 09-28-2012, 11:14 AM
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On the question asked about light over the 125g which is a six foot tank.

I have a 5-foot 115g tank, and with it I bought a 5-foot T8 fixture that takes two 48-inch T8 tubes. This has proven over 15 years to have been sufficient light, and you can see photos in my log [below my name on the left].

I don't know how readily available these fixtures are now, or if they come in 6-foot lengths. It likely depends upon how the tank is constructed. Presumably there is a centre brace at the top, and this can help support the light fixture whether it be a single 6-foot or two 3-foot. A 6-foot fixture would presumably have more than just 2 48-inch tubes, and the 3-foot would have 30-36 inch tubes, so the tank length would be covered either way.

Byron.

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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post #10 of 10 Old 09-29-2012, 08:07 AM Thread Starter
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Ok thank you . and yes it has a center brace for support. Now i just have to get some time to go back to lowes.. Been working way to much these past few weeks seems like.

55gal. Mbuna Tank. Aceis, Labs, Red Zebras,Cobalt Blues.

55gal Bowfront.Blood Parrot fish

55gal. under construction

awaiting to find 125+ for Mbuna
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