The Planted Tank Forum banner

7.5 Gallon Cube

4428 Views 12 Replies 4 Participants Last post by  Tributary
I decided to give my soon to be six year old a fish tank for her birthday. (Okay, I'll be honest this is kind of a gift to myself as well). This is only my second high tech planted tank, so I am still a rookie and bound to make mistakes -- what little I know about planted tanks I've learned by reading this forum, talking to my awesome LFS guy, and watching YouTube tutorials. So here goes...

Tank: 12" (30cm) Deep Blue Pro rimless cube
Light: Fluval Aura High Performance (New!)
Filter: Aqueon Quietflow AT10 submersible
Substrate: EcoComplete (Black)
Decor: Seiryu Stone (19 lbs)
Flora: DHG, S. Repens, and P. Helferi (all tissue cultures from TopFin)
Fauna: 2 Dwarf/Pea Puffers; 1 Otocinclus [To be added in a few weeks]
CO2: Paintball w/ Aquatek CO2 Regulator Mini & Glass diffuser
Dosing: EI Method

Here is a full tank shot (the water was still a bit cloudy):

Here is a view of the front and right side of the tank:

And finally, just the right side:

I am running the tank at 1 bubble per second and hoping to get the tissue cultured plants acclimated for the first two weeks. Will report back soon...

Thanks for reading/viewing! Advice always welcome and appreciated.
1 - 13 of 13 Posts

· Registered
94 Posts
Discussion Starter · #2 ·
Added Fluval Compact Heater

Added a small (25 watt) heater designed for the Fluval Edge to left of the Aqueon AT10 filter. So far it seems to be working and slowly warming the tank. It is designed to just raise the temperature to 78 F (26 C) and then shut off, that should be more than adequate for the planned flora and fauna. Since the tank is in our kitchen where the ambient temperature is usually about 72 F (22 C), I am not too worried about needing a stronger heater.

If I had space to use a canister filter, I would have gone with an inline heater, but the current option with submersible filter and heater does not look too bad.

Here is a detail of the DHG from today (Day 4)

I've begun transferring a bit of water and filter media from my 125 gallon to help begin the cycling process. Not having any luck finding a small bottle of ammonia to really start the cycle though...

Here are measurements for the tank water:

Ph: 7.6 (morning) to 6.0 (evening)
NH3 / NH4: 0
NO2: 0
NO3: 0
GH: 11 degrees
KH: 8 degrees

· Registered
284 Posts
Sorry about that, hate when things like that happen.

I love the look of the tank! But are you sure that'll be okay for 2 dwarf puffers and an Oto? There's not much "hiding" places or where they can explore. As you know puffers are aggressive and if they don't have enough space they may kill one another or the Oto.

I also have a 7.9 rimless tank I plan on getting 2 DP.

· Registered
94 Posts
Discussion Starter · #7 ·
I ordered an Ecoxotic 12" light to replace the Fluval Aura that fell into the tank. I still haven't figured out how to get part of the Fluval light's adhesive off which is stuck to the back of the tank. I will try using a razor when I have time.

My daughter decided that she wanted more than just two pea puffers in her tank, so we ordered six P. Gertrudes and half a dozen blue neo shrimp. Unfortunately, two of the Gertrudes jumped into the afterlife a few days after settling in, so we are all a bit sad. Feeding the remaining guys is turning out to be quite a challenge. They only seem to like crushed flake food; they were curious about daphnea, but did not eat them.

In the meantime, I am tweaking the lighting and Excel to keep algae at bay.

I will post photos soon. Thanks for reading...

· Registered
94 Posts
Discussion Starter · #9 ·
Fissidens Fontanus Tree

So I completely removed the Seriyu (Ying) stone after I lost the gertrudes and otos. I think the main reason the fish died was neglect of water changes.

So I am trying a new aquascape with a manzanita branch and fissidens fontanus as the center piece. I am also trying to lower the TDS from 130 to less than 100 by adding distilled water. (I've ordered a RO+DI system which will be here in a few weeks).

Here is a little closer look. The only inhabitants are three otos and several blue neo-cardinia shrimp.

I have been battling hair algae, but I think I am winning the war. Still a few strands to eliminate/remove...


· Registered
94 Posts
Discussion Starter · #13 ·
Now with even more manzanita!

I decided to triple the number of manzanita branches in the nano tank to add some more depth and complexity. It was not easy getting all these in there, but I am happy with composition (for now...). Oh and I've added two dwarf coryadoras (I'm waiting for my LFS to get a few more in stock) to keep the three Oto's company.

I have been using distilled water to lower the TDS reading to about 50 and I am using an airstone at night to circulate and aerate the water. The fish seem remarkably happy and playful. Hair algae is way down but still not completely gone. Here's one more picture of the tank...

Thanks for reading...
1 - 13 of 13 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.