New 160 Gal - Cycled ?? Please advise

geraldtang

AC Members
Mar 27, 2004
5
0
0
57
Taiwan
Visit site
Hi,

After done some research from the web and saving for a while, I recently got a 160 Gal/ 608 L Tank (5ft x 2ft x 2ft) with the following setup

Lights :
Hood with 3 x 4 ft flourescant lights - 2 Pinkish Light and 1 White Light (according to lfs) - forgotten about the power consumption of the tubes but was told my lfs 2 of these are plant lights.

HOT Tricker Tower Filter - 4 layers
2 Power Heads - Each rated 3700l/ hr; Water falls back to tank via 3 drilled holes in the middle via gravity
Layer 1 - Sponges
Layer 2 - 4 - Diff type of Bio media (Claimed to develop aerobic nitrifying bacteria)

2 RUGF - Each Power heads rated 1200 l/ hr
Gravel - 2 inch of Crushed corals

Decorations :
3 pieces of drift wood - boiled and cured for 1 week, no leaching
4 Plants - All Anubias Bateris

The above setup turnover the water > 12 x

Cycling Reagents :

1. Microbe-lift - Contains 2 types of benefitial Ntiro Bacteria
(Could not get Bio Spira or pure ammonia - I just moved and unfamiliar with the new city)
2. Water Conditioner : Not branded Anti-Chorine/ Chloroamine/ Ammonia solution
3. Used some soiled sponges/ crushed corals from lfs when first setup

Test Kits :
Sera - NH3, No2, No3 liquid based test kits
PH - Digital PH meter from LFS.

Water Chemistry :

Day 1 :
PH : 8.2
NH3 : 0 mg/l
No2 : 0 mg/l
No3: 0 mg/l

Day 3 :
PH : 8.2
NH3 : 0 mg/l
No2 : 0 mg/l
No3: 2.5 mg/l

Day 5 : (Added 4 goldies of size 2 - 3 inch each - 2 Orandas, 2 Ryukins)
- Coz felt frustrated that no apparent ammonia and worried if cycling is proceeding ; perhaps lack of patience too. These are not feeder fish coz they are exceptionally beautiful - to me.
PH : 8.1
NH3 : 0 mg/l
No2 : 0 mg/l
No3: 2.5 mg/l

Day 7 :
PH : 8.1
NH3 : 0 mg/l
No2 : 0 mg/l
No3: 2.5 mg/l

** SInce day 1, the water is crystal clear till now. And so far all water parameters are holding steady. Keeping a close eye - daily testing

In retrospect, I could have been more patient and wait out the cycling period of 4 - 6 wks but not getting the right ingredients for cycling (could not get pure ammonia or Bio Spira) and based on recommendations from lfs, the microbe-lift stuff work well too (claims to cycle within 1 wk) , I gave it a shot.

ON day 5 after adding the goldfish, all parameters seems to hold out (perhaps due to its BIG tank) and the godies are happy in the new planted and spacious tank. They eat normal and are lively as can be. No signs of stress yet like hiding in corners or appearing adnormal)

I am planning a 20% - 25% water change on Day 8 with water treated with the above water conditioners (aerated for 24hrs) but not planning to cleanse the filter media for fear any good bugs are destroyed. Will do some gravel vacuuming too but will try to keep it light. - to safeguard good bugs breeding ground in the gravel.

Will keep a close eye on the fish and the water parameters over the next month or so but I am curious :

1. Is this tank cycled ?? I doubt it myself but putting fish to create ammonia has not helped, perhaps the plants have taken their fair share of nitrates and some bio bugs have grown to remove ammonia/ nitrites too.

2. If the tank is not cycled and more fish added (same size) over the next few days/ 1 week but keeping an eye on the parameters .. will it help to speed up the cycle or jeopardize it ??

3. Can a tank be un-cycled but based on careful monitoring and all, healthy goldies can still prosper and grow in such environment ?? This is my biggest concern .. unstable tank.

4. What do you recommend ?? I hold out till the NH3, No2, No3 spikes and falls - as per normal cycling before I put more fishes ?? From the looks of it all, I have added too many vairables - plants and some good bacteria agents and may not see the spike that goes with normal fish/ fishless cycling ..

Hope to hear from all the other goldie lovers out there or anyone with similar past experience ..

I love goldies and am anxious to do it right to create the best environment for my goldies.


Gerald (Baffled and Anxious)
 
Hi,

I missed out an important piece of information in the earlier post. The tank is well aerated with a 4 ft bubble wall powered by a strong air pump.

Keeping fingers crossed and hope all goes well.

Gerald
 
The tank is not cycled yet, no, but you may not actually see high levels in a tank that size, as long as you leave your stocking density low, and slowly add fish to it. If you just slowly add a fish or two a week after the first 6 weeks, you should have no problem keeping your ammonia and nitrite levels low. Weekly water changes won't hurt, either. The problem with all of your additions of bacteria, is that you weren't adding an ammonia source at the same time, so the colonies of bacteria will have significantly died back, due to starvation.

On a side note, the bubble wall may eventually be something you'll want to rethink, if you're intending to have a fully planted tank.

Barbie
 
Hi Barbie,

Thanks for the advice. Being a goldie lover, I have decided to make it a fish only tank with the tank lightly planted .. All plants are tied to drift woods. Besides, I read in many forums that Goldies needs aeration more so than other fishes. So its likely I will keep the Bubble Wall to ensure enough oxigenation to the tank .. for the fish as well as the bio bugs.

I would probably increase the bio load slowly by adding 1 to 2 new goldies per week till I reach 9. Its a Fengshui number as well as the optimum for the 160 gal tank (Trying to keep a 20 Gal vol per goldie as many recommended).

Hmm .. starving bio bugs huh .. I have become a killer of bio bugs .. so sad .. :mad: Hopefully with my overfeeding .. the decaying food would add up the ammonia for the bio bugs food. Will still keep a close eye on the water chemistry as well as the goldies over time.

Any more advice with fishy cycling at this point would be most appreciated .. Have taken this path and there's no turning back.

BTW, with a fishy cycling process, what is the ammonia spike (how much tolerance ??) are we looking at as a balance to keep the goldies from harmed but still generate enough ammonia for the bio bugs ??



Gerald. :confused:
 
Hi all,

Did 20% water change 2 days back and just did some water parameters test today. Here's the results :

Day 9
PH : 8.1 (holding steady since Day 1 from 8.2)
Ammonia (NH3) : 0
Nitrite : 0.5 mg/l (Had been 0 till Day 9)
Nitrate : 40 mg/l (wow .. it shot up overnight from 2.5 mg/l since I last measured on Day 5 which was 2.5 mg/l)

Could it be due to my overfeeding to deliberately create waste and ammonia to speed up the cycle ?? Only 4 goldies size range from 2 " to 3" in the 160 Gal tank now.

Is 40 too high for Nitrates and should I do a water change ASAP to lower the nitrates down and reduce feeding ??

Like to hear it from all of you experienced folks out there ..

Gerald
 
Yes, the high nitrates would be a result of overfeeding. Your tank is almost done cycling, IMO. I would definitely do a 30% change and reduce the amount you're feeding. Goldies put off a good amount of waste, overfeeding isn't necessary. 40ppm nitrates isn't a lethal amount, but its definitely a good place to use a guideline to try to keep them under. If you find you aren't able to do that with weekly water changes, then you can reevaluate your feeding schedules or stocking levels. Hope that helps!

Barbie
 
Also, I thought I'd add that a ph of 8.1 is WAY too high for goldfish. you should have a neutral ph, one of the reasons may be the presence of the crushed coral. However, your water may also be naturally hard. I would definately check that out if you plan on keeping anything long term. First off, remove the crushed coral from the tank. That's just going to buffer the ph, it could actually be your only cause for raising the ph.
 
AquariaCentral.com