Setting up a 75 G with only plants - are water changes necessary? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 4 Old 11-13-2014, 01:23 AM Thread Starter
Cool Setting up a 75 G with only plants - are water changes necessary?

Hi all,
I am thinking of setting up a 75G planted tank. I'll only keep a betta in it to let him spend his last few months in it. I was wondering if I need to do any water changes. Is it OK to just top off the tank every week or so to make up for evaporation losses?

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post #2 of 4 Old 11-13-2014, 08:49 AM
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At first, yes, they will be necessary to remove dead plant matter as the tank cycles. You'll still have to feed the plants since one Betta isn't enough to contribute to all the plants. Will you be doing a soil based tank or just regular sand/gravel?

Wilds: Betta Wajok, B. rutilans, B. siamentorialis, B. hendra
Leopards: 1:4 Hawkeye, Luna, Astrael, Dorian, Cullen, Gallifrey
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African Fat Tails: Nox and Lux
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post #3 of 4 Old 11-13-2014, 11:40 AM Thread Starter
I'm just going to use gravel. However, I'll be using Seachem Flourish fertilizer to take care of micronutrient requirements.
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post #4 of 4 Old 11-14-2014, 10:06 AM
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water changes remove concentrated contaminates.... topping off with tap water concentrates minerals because minerals do not evaporate with the water... top offs should be with distilled or r/o water to avoid concentrations... lastly, tank water will become more acidic over time... if you do not do routine water changes, your dkh and Ph will suffer....changing the water will renew your waters buffers, thus allowing it to remain stable....

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