Question about building background.

[peeka]

Mortar/grout can be used, but it is important to cure it with vinegar to neutralize the pH, otherwise it will cause the water to become too alkaline.

Would this still be a concern even if the background is not going to come into direct contact with the water?

Ally

[John]

Yes, if you're keeping frogs you have humidity and misting issues to contend with.

[peeka]

Uh Oh. That step wasn't in the tutorial I was following and I have already finished it. I'll have to ask the original poster.

Thanks

Ally