How many in 90 Gallons?

No...johanni with electric yellow

cobalt blues are far too aggressive

Ah Ok! i misread sorry! But thank you for the info.

Where can you purchase / find this Texas rock you are talking about? is it specifically found in texas or can it be purchased threw local shops? If i can use normal rocks i find outside in say rock pits, i will start hunting for those. And i will try to find the bottoms you mentioned as see which one i like best!
 
Google is your friend. Use it. Google Texas Holey Rock. take some initiative and you will be rewarded. :D

I wouldn't use rocks found outside as you don't know what they've been exposed to. They could be covered with petroleum residue, pesticides, etc.

Try eBay.
 
Google is your friend. Use it. Google Texas Holey Rock. take some initiative and you will be rewarded. :D

I wouldn't use rocks found outside as you don't know what they've been exposed to. They could be covered with petroleum residue, pesticides, etc.

Try eBay.

Would it be possible just to use some soap and water and clean the rocks over and over again and than just let them soak in hot water, than rinse them a couple times, and let them soak some more?

The Texas Holy Rock is really nice but i think it would add up really fast after shipping to Canada
 
No, never use soap on anything for use in your aquarium.

Bleach and water or vinegar and water ONLY.

A good test I think people say to use to see if a rock is truly is inert is to pour some muriatic acid on it. If it fizzes then it's not. I'm pretty sure it's muriatic, but I am second guessing myself because it's late right now.

Try ebay.ca (ebay canada)
 
Yah, I see what you mean. I forgot to check the shipping. Someone in Canada will have to make alternative suggestions for you.

It wouldnt be that bad if i didn't have to worry about bidding against other people. But if it goes for more than $10 it would be quite expensive to get lots.

Otherwise i will try to order some in a couple months. I bet it looks really nice in tanks.

But to fill the 90 Gallon it would require quite a few peaces i think?
 
You don't necessarily have to fill the whole tank. Place pieces, gaining some height and a pleasing look. Maybe higher on each end or high in the middle and tapering down. Try to create holes and tunnels they dart in and out of.

I have used pieces of rock from around the area, and just scrub/soak them clean, and haven't had any issues. Also, many landscaping places or gravel yards can have some interesting and inexpensive stone.
 
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